Spelldata List of Products and Services

The importance of early warning systems for detecting earthquakes and tsunamis, military defense, and crises in business and finance has long been understood. So why are service providers, especially those offering SaaS (Software as a Service), not doing the same? In a world where a minute can even translate to millions of dollars, it is crucial to carefully monitor the supply chain and delivery chain of services to corporate and consumer end users. *For more details, please refer to the related link. Feel free to contact us for more information.*

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The series of internet outages and disruptions that occurred in 2021 demonstrate how interconnected and relatively fragile the internet ecosystems are. For example, there were three consecutive outages of Amazon Web Services (AWS) in December. These outages vividly illustrate the fact that "there is no distinction between large and small when it comes to service failures." 【Overview】 ■1. Early detection is crucial for responding to incidents like the AWS situation. ■2. Comprehensive observability enables rapid response during incidents. ■3. Ensuring corporate availability and business continuity cannot be achieved through individual efforts alone. ■4. Monitoring solutions installed in the environment being monitored are insufficient. *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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Catchpoint's WebPageTest garnered attention by announcing significant UI changes in January, with team members participating in events and commenting on developer trends. Additionally, Catchpoint was selected as one of the "20 Coolest Cloud Monitoring and Management Companies" in the 2022 Cloud 100. What an honor! 【Overview】 ■ 2022 Cloud 100 "20 Coolest Cloud Monitoring and Management Companies" ■ Launch of the new WebPageTest UI ■ Introduction of a new role, "Developer Experience Engineer" – maximizing productivity and delivering value to customers faster ■ Web Almanac AMA ■ Profile article on Catchpoint *For more details, please refer to the related links. Feel free to contact us for more information.

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Ensuring the health of BGP routes is one of the key components of a robust network monitoring strategy. If any IP address prefix is unreachable to end users, it is essential to quickly obtain direct and practical data to pinpoint the nature of the problem. Without such sharp real-time BGP alert capabilities, troubleshooting issues affecting the end-user experience becomes very difficult, leading to increased mean time to detect (MTTD) and mean time to resolve (MTTR). To establish a comprehensive BGP monitoring strategy, it is necessary to input all public IP prefixes belonging to the organization and associate alerts covering all potential route issues that could disrupt the end-user experience with each prefix. [Overview] ■ Availability and downtime ■ Origin AS ■ Origin adjacency ■ Prefix mismatch ■ Path AS *For more details on the blog, please refer to the related link. For further inquiries, feel free to contact us.

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You are not the only one who shopped online during this year's holiday season. The "Cyber Five," the five days between Thanksgiving and Cyber Monday, accounted for one-fifth of total e-commerce sales in November and December 2021 (despite a slight decrease in overall spending compared to last year). Americans spent $8.9 billion on Black Friday and $10.7 billion on Cyber Monday. Thus, the Cyber Five is a crucial time for businesses to ensure their websites run smoothly and to handle the increase in traffic. If you want to know how top e-commerce sites performed overall during the Cyber Five period, please read on. [Overview (Excerpt)] ■ 2021 Cyber Five Benchmark Report ■ Measurement of Key Performance Indicators *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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In December, AWS experienced an unprecedented situation with three outages in three weeks. Catchpoint conducted an incident review that delved into the details of these three outages and their commercial impact. - Major online services, including Amazon, crashed due to AWS outages - AWS outages occurred again this week - Third AWS outage in December – adding insult to injury At the same time, we released a series of forward-looking insights on trends in observability and digital experience monitoring, acting as newsmakers and prophets. [Overview] ■ Trends and developments in top networks 2022 ■ 2022 Application Performance Management Predictions - Part 1 ■ 2022 Application Performance Management Predictions - Part 2 ■ Catchpoint 2022 Predictions: Total Experience Orchestration ■ During Cyber 5, dozens of retailers faced website outages and slowdowns *For more details on the blog, please refer to the related links. Feel free to contact us for more information.

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When working, it is important to maximize your abilities. However, as the opportunities to rely on video conferencing have increased in our daily work life, how well you can present yourself is also a key to success. Unfortunately, providing a perfect video experience for widely dispersed employees can become a headache for the IT department. [Overview (Excerpt)] ■ Three reasons why video observability is key to today's employee experience 1. Remote work is mainstream 2. Companies are accelerating their digital transformation plans 3. Digital transformation is driving cloud adoption *For more details on the blog, please refer to the related link. Feel free to contact us for more information.

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The following is an analysis of the Amazon Web Services outage that occurred on December 15, 2021. While it may be the holiday season for many, it seems to be a Bill Murray-style Groundhog Day for AWS. For the second consecutive week, outages occurred in the US-West-2 region in Oregon and the US-West-1 region in Northern California. This AWS outage lasted for about an hour, affecting major services such as Auth0, Duo, Okta, DoorDash, PlayStation Network, Slack, Netflix, Snapchat, and Zoom. Catchpoint confirmed that the outage occurred around 7:15 AM Pacific Time, significantly earlier than AWS's announcement. [Summary] ■ Service degradation related to the outage reported by major monitoring vendors ■ The greatness of knowing your work *For more details, please refer to the related links. Feel free to contact us for more information.

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This article is a translation of a blog post from Catchpoint Systems, Inc. As the partnership between WebPageTest and Catchpoint reaches its one-year mark, Jeena, the General Manager of WebPageTest, and Tim, the Engineering Director, participated in a Q&A session to discuss last year's significant milestones and future prospects. Please take a look. *For more details about the blog, you can view it through the related links. Feel free to contact us for more information.

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Defining the term "monitoring" is a challenging task, considering that the performance space has been evolving significantly year by year. Recently, there have been changes in the world of monitoring, leading to healthy discussions about the definitions and purposes of monitoring, during which a new term, "observability," has emerged. Many companies, such as AirBnB, Twitter, and Stripe, have created roles like observability teams and observability engineers to incorporate observability into their practices. So, what is the difference between monitoring and observability? And what kind of relationship do they have? *For more details about the blog, you can view it through the related links. Please feel free to contact us for more information.*

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The incident reviews continue unabated, with not just one but two analysis articles by Catchpoint experts. This month, Google Cloud faced outages across multiple products, causing many of its customers' websites, from Spotify to Priceline, to crash, bringing Google into the spotlight. Meanwhile, an article contributed by Nik Koutsoukos, CMO of Catchpoint, to DevOps.com discusses the theme of observability and why it is important. [Summary (Excerpt)] - Topics from November 2021 - Announcement of Argo for Spectrum - Finding new meaning in "Shop 'Til You Drop" during Black Friday online sales - Supporting active observability for Catchpoint MEC and AWS Wavelength *For more details, please refer to the related links. Feel free to contact us for more information.

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The following is an analysis of the AWS outage that occurred on December 8, 2021. Due to the outage of Amazon Web Services, major online services such as Amazon, Amazon Prime, Amazon Alexa, Venmo, Disney+, Instacart, Roku, Kindle, and several online gaming sites were disrupted, affecting millions of users. This outage occurred in the US-EAST-1 region (Northern Virginia) on December 8, 2021, and was still ongoing at the time of the blog's publication. [Overview] ■ Catchpoint quickly detected the AWS outage and issued a warning. ■ Even monitoring vendors operating on public cloud services are not immune to service impacts! *For more details, please refer to the related links. Feel free to contact us for more information.

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The Digital World - We work and play within it. Of course, this is different if you work in the IT department responsible for digital experiences. In that case, you will have nightmares. Here's why. [Overview] ■ Pros and Cons of SaaS-based Cloud Services 1. Start from the end user 2. Break free from siloed observability 3. Ensure today's tools do not become tomorrow's bottlenecks 4. Hold SaaS vendors accountable and build strategies to reduce costs ■ Efforts towards a new approach to SaaS Performance Management *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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Internet outages can catch you off guard when you're trying to implement what’s in the incident response handbook, whether you are an end user or the head of an SRE (Site Reliability Engineering) or DevOps department, all while trying to maintain your composure. For those responsible for providing reliable services to customers, typical outages include situations that should be resolved as quickly as possible, akin to a fire alarm or video call ringing. That said, we often forget what outages mean for end users. On Tuesday, November 16, 2021, for some reason, I was reminded of the feeling of having just put on mismatched shoes. **Overview** - From the end user's perspective: Google not found error - Outage of 2021 - Catchpoint observed a sharp increase in test failures - "Bugs lurking in network configuration services" - Three important lessons for any company *For more details, please refer to the related links. Feel free to contact us for more information.*

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On November 8 (Monday) and 9 (Tuesday), Comcast experienced consecutive outages that affected users across the United States, causing many to go offline. The first outage occurred on Monday night in the San Francisco Bay Area. The second outage happened on Tuesday morning, primarily impacting a wide range of areas in the Midwest, Southeast, and East Coast, but its effects were widespread. The shutdown of this popular cable network, which has over 31 million broadband internet subscribers in the U.S., had a serious impact on people living in remote areas. Millions of users were unable to connect to the internet, missing their usual morning online meetings. [Overview] - Catchpoint detected the Comcast outage in real-time. - Catchpoint's endpoint observability solution revealed the impact on remote workers. - Wouldn't you like to take a peek inside the black box? *For more details, you can view the related links. Please feel free to contact us for more information.

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On September 7, 2021, at 16:36 (UTC), users of Spectrum's cable TV in the Midwest United States, including Ohio, Wisconsin, and Kentucky, experienced an outage. Users utilizing the company's broadband and television services took to social media to express their frustration over the disruption. Spectrum was vague about the type of issue causing the outage. Investigations revealed the possibility of a BGP route hijacking. 【Overview】 ■ Fact-checking Spectrum's investigation ■ So, is this Dr. BGP Hijack or Mr. BGP Misconfiguration? ■ Lessons for network administrators ■ Deepening understanding of proactive efforts in BGP security *For more details, please refer to the related links. For further inquiries, feel free to contact us.

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On August 31 (Tuesday), users in a wide area of the West Coast (US-West-2 region) were affected by a significant spike in response times. Among AWS's critical services, Lambda and Kinesis were impacted. The SRE team is concerned about service level indicators (SLIs) and service level objectives (SLOs), and this practice is essential for the SRE team. However, unlike Google, the founder of SRE, most companies rely on infrastructure and services from other providers like AWS and GCP, as well as multiple CDNs. In other words, it is not only necessary to have SLIs and SLOs for their own applications and services, but they also need to carefully evaluate their providers and vendors. *For more details, you can view the blog through the related link. Please feel free to contact us for more information.*

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Email is often the first choice for cybercriminals when they start their attacks because it is very easy to misuse. Unlike brute force attacks that require a large amount of processing power or sophisticated techniques that demand advanced skills, domain spoofing can be done as easily as writing an email while pretending to be someone else. In many cases, that "someone else" is a major software service platform that people rely on for their work. This occurred when PowerDMARC's security analysts discovered a new wave of phishing emails targeting a major insurance company in the Middle East between April 15 and 30, 2020. This attack is just one of many instances of phishing and spoofing that have recently increased during the Covid-19 crisis. Prior to this, in February 2020, another large-scale phishing scam occurred, where thousands of emails were sent impersonating the World Health Organization, soliciting donations for coronavirus relief. *For more details about the blog, please refer to the related link. For further inquiries, feel free to contact us.*

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For Microsoft 365 users with DKIM enabled on their Office 365 domain, an error may occur stating that the DKIM record for selector2 cannot be found. This means that when the DNS was referenced using selector2 as the resource locator, no results were obtained, and the receiving server failed to find the DKIM record for selector2. Why is DKIM selector2 not functioning on a Microsoft 365 domain? Let's investigate the cause. [Overview] ■ DKIM record for selector2 not found ■ Results for DKIM selector1 ■ Results for DKIM selector2 ■ How to resolve "DKIM selector2 not working"? ■ Final step: Test DKIM selector2 *For more details, please refer to the related links. Feel free to contact us for more information.

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Unlike DMARC, SPF behaves differently for each subdomain. If you are unsure whether to set up SPF for your subdomains or whether to implement a separate (DMARC) policy for them, this article may be helpful. To summarize briefly, the DMARC policy of a domain is automatically applied to its subdomains. This means that if there is a DMARC record with p=reject published for company.com, emails sent from subdomains like support.company.com or marketing.company.com will inherit the same DMARC policy as the zone apex domain, so there is no need to manually configure individual sp (subdomain policy) DMARC tags. [Overview] ■ How does SPF work with subdomains? ■ Creating SPF records for subdomains ■ Why do subdomains (and domains) need SPF? ■ What is an SPF record? *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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DNS records, or Domain Name System records, are data stored in the database of a domain. These records define how a website is hosted and what can be accessed. They inform the internet on how to find a website and how to communicate with it. The Domain Name System (DNS) is the foundation of domains. Despite being used daily, most people do not know what it is. This article will explain in detail what records are, the various types of DNS records that exist, and how to utilize them. [Overview] ■ What are DNS records? ■ Common types of DNS records ■ Common types of TXT records ■ Why are DNS records important? ■ Conclusion *For more details about the blog content, please refer to the related links. For further inquiries, feel free to contact us.

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The important thing about how to flush DNS is knowing when you should flush DNS. Flushing DNS is the process of clearing the cache and resolver cache to ensure that all DNS records are always up to date. The main purpose of this process is to improve and stabilize network performance. It also helps when resolving hostnames to IP addresses (name resolution). This article explains how to flush DNS on different operating systems such as Windows, Google Chrome, Mac, and Linux. [Overview (partial)] ■ What does it mean to flush DNS? ■ Should you manually flush DNS? ■ How to flush DNS (for Windows 10, 8, 7, XP, and Vista users) ■ How to flush DNS (for Mac users) ■ How to flush DNS in Google Chrome? *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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Microsoft is expanding support for email authentication protocols like DMARC across all email platforms. However, to fully leverage its benefits, it is essential to know how to correctly implement DMARC in Office 365. In recent years, many companies have transitioned to effective and robust cloud-based platforms and hosted email solutions like Office 365. Consequently, cybercriminals have upgraded their malicious techniques to cleverly manipulate the security solutions integrated into these platforms to carry out email fraud. This blog will explain how to set up DMARC in Office 365. [Overview (Partial)] ■ Why set up DMARC in Office 365? ■ Is DMARC really necessary if you are using Office 365? ■ How does DMARC function within Office 365? *For more details, you can view the blog through the related links. Please feel free to contact us for more information.

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On January 9, 2018, Google announced a significant overhaul of PageSpeed Insights on its blog. ("Real-world data in PageSpeed Insights") Previously, Google PageSpeed Insights was a scoring tool that assessed compliance with best practices but did not evaluate actual display speed. With the changes in January, Google PageSpeed Insights began utilizing data from users browsing with Chrome to present statistical analyses of display speed. However, there are sites that receive assessments and those that do not. Why is that? Understanding the background of this new system will clarify the reason. [Overview] ■ A major transformation of Google PageSpeed Insights ■ Quality of delivery displayed by percentile values ■ Two metric values ■ Sample acquisition ■ Speed assessment ■ Important points to note *For detailed content of the blog, you can view it through the related link. Please feel free to contact us for more information.

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Is web performance really important? Do we really need to invest time and effort to optimize the performance of our website? If you are still debating this, let us help you uncover the truth. Optimizing a website directly improves speed and performance, which in turn reduces bounce rates and increases conversions. In other words, yes, optimizing your website is important, especially if you want to generate revenue from it. 【Overview】 ■ What matters is content 1. Optimization of CSS and JS 2. Gzip compression 3. Image optimization 4. Browser caching 5. Performance of web fonts *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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On November 27, 2017, the Ministry of Industry and Information Technology (MIIT) of the People's Republic of China issued an important notice regarding internet business in China. This is Circular 264. The implementation of this notice will take effect on January 1, 2018. This notice will have a significant impact on websites conducting business online in China, including manufacturing, cross-border e-commerce sites, hotels, and inns. [Overview] ■ What is ICP? ■ What is an ICP License? ■ What has changed with the Cybersecurity Law? ■ What has changed with Circular 264? ■ Measures for Circular 264 ■ Summary *For more detailed information, please refer to the related links. Feel free to contact us for further inquiries.

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In the previous and the one before that, I expressed my views on the Japanese web industry, but this time I would like to point out the essential concept of "omotenashi," which is crucial for considering the quality of the web, based on my experiences, including its historical transitions. In the service industry, consumer manufacturing, and the web industry, it feels like there is a current trend of actively working on improving customer satisfaction and UX, which I find to be a very positive trend. There is no doubt that improving customer satisfaction and UX contributes to business, and I believe this common understanding has taken root in the web industry. [Overview] ■ What is "Japanese omotenashi" in the first place? ■ Disadvantages of trust-based transactions ■ A failure story from a certain enthusiast ■ Summarizing the changes of the times ■ What Spelldata thinks about customer satisfaction and customer delight ■ Author's profile *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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In this series, we plan to introduce several key performance indicators. We will analyze real-time data to compare high-performing websites with low-performing ones. We aim to provide detailed explanations of best practices to help those who want to optimize their websites without compromising on design or content. [Overview] ■ Why page size is a measurement item ・ Explanation of technical terms ■ The impact of page size ■ Simple static pages vs. rich dynamic pages *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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According to an article in The Wall Street Journal dated April 19, 2017, "Google Plans Ad-Blocking Feature in Popular Chrome Browser," Google is finally planning to implement an ad-blocking feature in Chrome. The ads that will be blocked are those deemed unacceptable and detrimental to customer experience, based on the "Better Ads Standards for Desktop and Mobile Web in North America and Europe" established by the Coalition for Better Ads. 【Overview】 ■ What is the Coalition for Better Ads ■ Better Ads Standards ■ Types of ads that will be blocked in Chrome ■ Google fulfilling its promise to improve the ad experience *For more details, you can view the blog through the related links. Please feel free to contact us for more information.

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The Hypertext Transfer Protocol (HTTP) was introduced by Tim Berners-Lee in 1991. The initial version, HTTP/0.9, was designed to assist in data transmission between clients and servers. This protocol operates on a request-response model over TCP connections, and has evolved over the years with improvements and feature enhancements. The new version is HTTP/2, which introduces significant improvements focused on the performance and speed of web pages. 【Overview】 ■What are HTTP headers? - General headers - Request headers - Response headers - Entity headers *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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In this article, we will discuss the effects of headers in optimizing website performance. We will focus on headers that effectively assist in the implementation of caching, compression, and security, and how they impact the overall digital experience. 【Overview】 ■ Cache Headers - No cache - Shared cache - Local (private) cache - Cache-control - Pragma ■ Compression Headers - End-to-end headers - Hop-by-hop headers *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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In the April update of our web performance measurement and monitoring service, Catchpoint, we have added support for Speed Index. Speed Index is a metric that was added to the open-source website measurement tool Webpage Test, which Google supports in the development and deployment of measurement servers, in April 2012. It represents how quickly a web page is displayed and visualized, with smaller values indicating better performance. 【Overview】 ■ Traditional metrics ■ Issues with display-related metrics ■ Introduction of Speed Index ■ Speed Index of Japanese websites ■ Speed Index of the top 10,000 .com sites on Alexa *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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On May 26, 2017, a revised law concerning the Civil Code's obligations (debt relations) was enacted by the National Diet and promulgated on June 2 of the same year. The revised Civil Code will come into effect on a date specified by government ordinance, within a period not exceeding three years from the date of promulgation, meaning it will be enforced no later than three years from that date. The revised Civil Code includes significant amendments regarding contractual relations, which are expected to have various impacts on business practices such as contract formation. Here, I would like to organize the revisions and specifically point out the impacts or key points of the revised Civil Code concerning contracts for website production and development. [Overview] ■ About the revision of the Civil Code (obligations) ■ Details of the revisions (focusing on liability for damages) ■ Regarding contracts for website production and development ■ Conclusion ■ Author's profile *For more detailed content of the blog, please refer to the related links. For further inquiries, feel free to contact us.

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Riding the wave of IoT applications, APIs have created the foundation for a world where everything is fully connected, from household appliances to cars and other smart gadgets with intercommunication capabilities. By monitoring APIs, performance monitoring and alerts for availability issues are conducted, helping to maintain the network of these devices. If there are performance issues with APIs integrated into existing applications provided by you or third parties, it can have a direct impact on the digital experience. API monitoring helps identify problem areas and ensures that end users are not affected. [Overview] ■ Points that may not go well ■ Why you should consider a monitoring strategy *For more details on the blog, please refer to the related links. Feel free to contact us for more information.

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The content of web pages consists of a mix of rich text HTML, images, videos, and other media. Multimedia content significantly increases the overall page size and directly impacts the performance of the web page. This does not mean that embedding videos goes against best practices. Any type of page content can be adjusted to overcome various performance issues. Optimizing web pages is an important step to ensure a sufficient digital experience, and overlooking videos would make this step inadequate. [Overview] ■ Current state of video formats ■ Optimizing video content ■ Optimizing page design for videos ■ Whether or not to embed in the page *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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Websites are no longer just simple HTML pages with static content. They have transformed into dynamic interfaces equipped with various features, and the content is updated at regular intervals. Website administrators use various techniques to allow users to view new versions of pages and content. When new features are added to the site or when web page resources are moved to new locations, users may not want those pages to be accessed. To prevent access, web page redirects are used. This allows the submitted HTTP requests to be redirected to other locations within the site, ensuring a seamless user experience. [Overview] ■ Role of Redirects ■ Types of Redirects ■ Performance Impact of Redirects ■ Common Redirect Errors ■ Proper Implementation of Redirects *For more details about the blog, please refer to the related links. Feel free to contact us for more information.

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The success of a website is directly proportional to the user's digital experience. In the age of technology, consumers who know various things, competitive target marketing, and speed are essential. Users expect websites to load quickly. The faster users can browse web pages, the better the digital experience becomes. It has already been explained how page size, images, and scripts affect web page loading times, and how to optimize these factors to provide an excellent user experience. [Overview] ■ What is the Critical Rendering Path ■ Importance of the Critical Rendering Path ■ Ideal Rendering Path *For more details on the blog, please refer to the related links. Feel free to contact us for more information.

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The internet is a continuously expanding warehouse of data. This data includes both publicly available information and personal or confidential data that can only be accessed by authorized individuals (or at least should be). There are numerous ways for hackers to eavesdrop on and tamper with this data, and the World Wide Web cannot guarantee the safety of data, so you must ensure that the data is transmitted and stored securely. Customers of online shops and banking sites are particularly vulnerable to hackers, making data encryption more important than ever, serving as the first line of defense against cyber attacks. [Overview] ■ Overall picture ■ SSL or TLS? ■ Why SSL is necessary ■ How to implement SSL ■ How SSL works *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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In the past, there were many OA companies in Japan that specialized in the proliferation of PCs, handling the purchase, installation, and support (for inquiries about malfunctions or usage) of corporate PCs and software. However, now, companies that outsource such services as standalone entities have almost disappeared. In small and medium-sized enterprises, it is common for knowledgeable employees in the general affairs department to handle these issues, or for system-related employees to manage them as a side task. In Japan, there are still many struggles in providing support, and companies often outsource to specialized firms (including web production companies), general advertising agencies, or internet-focused advertising agencies. Many of these tasks have become less of a trial-and-error process in the United States, allowing companies to focus on tasks that yield better results. [Overview] ■ Perspectives from the dawn of web business ■ The commoditization of the web globally ■ Countries that "create" will gain an advantage ■ Author profile *You can view detailed content of the blog through related links. For more information, please feel free to contact us.

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JavaScript has redefined web applications. It heralds the arrival of an era of dynamic websites with smooth responsive design. It has garnered significant support among developers, and popular libraries and frameworks like jQuery and AngularJS are all built with JavaScript. The infinite design possibilities that JavaScript offers through various existing libraries have become indispensable in the development of web applications. 【Overview】 ■ Why use JavaScript ■ Best Practices 1. Minify JS files and combine them into a single file 2. Avoid script duplication and inline scripts 3. Event handlers 4. Reduce DOM manipulation 5. Use async and defer ■ Future Outlook *For more details about the blog, you can view it through the related links. Please feel free to contact us for more information.

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Visual content is essential for modern websites, and even minimalist web design relies on sharp and beautiful images for a complete end-user experience. In recent years, screen sizes have diversified from smartphones to tablets, laptops to desktop PCs, making it important to use high-quality images that can be displayed correctly across various viewports. Images that are blurry or low-resolution can make a website's design look shabby, ultimately having a negative impact on the end-user experience. This article discusses major image optimization techniques. [Overview] ■ How to choose image formats ■ Image compression ■ Using CSS sprites ■ Adjusting image sizes to display sizes *For more details about the blog, please refer to the related links. Feel free to contact us for more information.

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Continuing from the last time, I would like to point out the fundamental issues in the Japanese web industry. It has been said for quite some time, and the improvement of web display speed has finally become more common in the country. The widespread adoption of smartphones and the decreasing costs of solutions for display speed, such as CDNs and cloud servers, are the reasons for this. Although it is still slow, it has finally settled into everyone's awareness. [Overview] ■ Various things that are not often reported domestically but are important to note ■ There are facts and realities that are not often discussed publicly ■ There is a reason for contributing to the Spelldata site ■ If I were a CIO/CDO/CMO ■ Author's profile *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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The importance of using tools like Google Analytics and Adobe Analytics for website access analysis is now widely recognized. Private qualifications such as web analytics certification are also well acknowledged, with over 20,000 people reportedly having taken the courses. By utilizing various metrics such as page views, time spent on the site, bounce rate, and conversion rate, improvements to website content can be made. However, is that data truly reliable? When causal relationships are perceived narrowly, data can lead people to unexpected mistakes. [Overview] ■ Experiments and Observations ■ Cautions for Web Access Analysis as Observational Data Analysis ■ Avoiding Incorrect Analysis ■ Improving Websites for Accurate Web Access Analysis *Detailed content of the blog can be viewed through related links. For more information, please feel free to contact us.

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The importance of website loading speed is gradually being recognized in Japan as well. According to global standards, the target values are "0.5 seconds to start displaying and within 2 seconds to complete displaying." Do you think these target values are "too fast"? In fact, scientific research has shown that the perception of time varies depending on the time of day and age. [Overview] ■ Perception of time changes with the time of day ■ Perception of time changes with age ■ There is no such thing as "too fast" when it comes to website loading speed *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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There are two approaches to the implementation of quantum computers: one is the quantum gate model, and the other is the quantum annealing model. The quantum gate model can be considered an advanced version of the computers we currently use and is suitable for general-purpose computation. The quantum annealing model excels at solving specific problems. Why is quantum computing attracting attention now? It is due to the approaching limits of Moore's Law, issues with power consumption, and the rise of machine learning. [Overview] ■ What is a quantum computer? ■ Reasons for the attention on quantum computers ■ Competition in the digital age *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.*

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