Spelldata List of Products and Services

In today's world, it has become commonplace to obtain various things immediately without waiting, such as shopping, restaurant and hotel reservations, and priority passes for attractions. The immediate satisfaction we can achieve is referred to in English as "instant gratification," and we have come to expect things to be available instantly, to the point where not being able to obtain something right away has become a source of stress. Moreover, when we build or update our own websites, we tend to focus on design, but in reality, as users looking at other websites, we do not seek a design that goes beyond readability. Websites that cannot meet users' demand for instant gratification—those that are slow to load, difficult to navigate, or hard to read—will likely struggle to survive in the competitive market moving forward. [Overview (Partial)] ■ Instant Gratification ■ An era where "speed" is demanded in everything *For more details about the blog, you can view it through the related links. Please feel free to contact us for more information.

Delivery quality refers to the display speed and availability (ease of connection) of a web page. If the display speed is slow, the customer experience deteriorates, resulting in users becoming frustrated and leaving the site. Moreover, it is not necessarily the case that the web designer and the web analyst are the same person. If analyzing a website created by someone else, it is essential to check whether the site's design, page content, display speed, and availability are adequate. [Overview (Partial)] ■Quality of the website ・Delivery quality ・Information quality ■Role of the web analyst *Detailed content of the blog can be viewed through related links. For more information, please feel free to contact us.

Information overload will continue to increase in the future, and people's free time will become scarcer and more fragmented. However, the importance of acquiring information will only grow. The advantage of paper newspapers is that they present a variety of information, regardless of one's interests. Yet, in modern society, the environment is so dense, busy, and diverse that it does not allow for such leisure. Readers quickly skim through headlines and summaries, picking and reading articles that interest them one after another. This is likely the style of readers who consume articles on their smartphones today. [Summary (partial)] - There are no people reading newspapers on the train now. - A time of transformation in revenue models. - Western newspapers focusing on speeding up their websites. - Relying on retargeting ads leads to self-destruction. *For more details about the blog, please refer to the related links. For further inquiries, feel free to contact us.

You can check what to do to speed up the display speed of web pages. In Japan, Google's PageSpeed Insights often comes up in discussions as a diagnostic tool. Isn't it strange that when you search for "PageSpeed Insights" in English, hardly any blogs from people using it for business appear? In fact, webmasters, infrastructure engineers, and front-end engineers at overseas companies do not use PageSpeed Insights. Instead, among engineers working on web performance abroad, Synthetic Monitoring and Real User Monitoring are commonly used. [Overview (Partial)] ■ Google PageSpeed Insights is only popular in Japan ■ What exactly is PageSpeed Insights? ■ The importance of eliminating opportunity loss ■ The importance of actually measuring *You can view the detailed content of the blog through related links. For more information, please feel free to contact us.

Google's emphasis on display speed in determining search rankings can be understood by considering where the "starting and ending points of the experience" are. The display of search results is not the endpoint of the search action; rather, the search action continues until a link is clicked from the list of search results and the actual web page data is displayed. If you are delivering high-value content or providing sufficient information about products and services, yet your search ranking is not improving or is declining, it is likely that your display speed is slow. If you suspect that your display speed may be slow, I highly recommend measuring it at least once. 【Overview】 ■ "The field trip is not over until you get home." ■ The reason Google prioritizes display speed in determining search rankings. ■ Would you like to measure your display speed? *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

With the revision of the Civil Code's obligations law, there will be a significant impact on websites and internet services. The term "quality" has been incorporated into the provisions of the Civil Code, meaning that not only the realization of specifications but also the quality as a non-functional requirement is now automatically included within the scope of contractual performance responsibility. Whether the responsibility regarding quality due to the Civil Code revision is seen as a "burden" or an "opportunity" will greatly change the business landscape. Considering the current poor delivery quality of Japanese websites and the reliance on the efforts of line providers and mobile companies for display speed, taking proactive measures now to differentiate business based on high quality will create a significant difference in future web production orders. *For more details on the blog, please refer to the related links. For further inquiries, feel free to contact us.

In this blog, we break down the topic of "how to determine whether 'information' is valuable to oneself" into the thought processes of impression, recognition, evaluation, and influence. There are various indicators that shape impressions, such as whether something is trustworthy or not, stylish or uncool, wonderful or tacky, but many of these are dominated by "appearance." Therefore, in websites, the design in the narrow sense (visual design) that influences the impression when first seen is emphasized for this reason. 【Overview】 ■ From "data" to "information" - Impression - Recognition - Evaluation - Influence *For more details about the blog, you can view it through the related links. Please feel free to contact us for more information.

Regardless of the type of website, what is common is that it primarily provides information. It can also be said that "websites distribute text data composed of characters, image data composed of images, and video data composed of videos." When data is perceived by humans through sensory organs such as eyes and ears, it is interpreted by the human brain. As a result of this interpretation, when "value" is found in that "data" within a person's mind, and it takes the form of a useful "notification," it becomes "information." [Overview (Part)] ■ What is information - Not all "data" becomes "information." - A "filter" that is acquired and strengthened through learning. *Detailed content of the blog can be viewed through related links. For more information, please feel free to contact us.

According to Google's digital marketing evangelist, all websites can be categorized into five types. E-commerce sites aim to increase the number of sales of products or services, while sites focused on lead generation aim to increase the number of inquiry form submissions. There are differences in goals based on the type of website. Unfortunately, it would be great if all five goals could be achieved with a single website, but that is quite difficult. Instead of being greedy and wanting "this and that," let's choose one necessary type of website for the current company and specialize in creating it. By doing so, it will become easier for people to understand, and the skills of the web manager will improve, leading to the development of a better website. *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

Information structuring refers to the process of coding information (content) on a web page in HTML with appropriate semantic markup, so that machines can correctly understand it. Even if you read a web page and think, "I can read it properly and understand the content," whether it is "readable" for machines is a different matter. If you prioritize the "appearance" for humans and convert the text into an image, machines will not be able to read it. If it is not machine-readable, the result will be a web page that is not human-findable. *You can view detailed content of the blog through the related links. For more information, please feel free to contact us.*

You may also have concerns in your daily work, such as "I don't really understand the web" or "I don't really understand IT." Currently, what is being promoted worldwide is programming education for elementary, middle, and high school students. In developed countries, IT education for university students has been advancing since the 1990s, and in Europe and the United States, new IT services have been easily understood and adopted by the white-collar workforce who graduated from university. However, in Japan, there are many business owners and middle managers who say "I don't really understand IT," and because they cannot understand it, it does not spread. As a result, the productivity of white-collar workers is significantly lower compared to the rest of the world. *You can view more details about the blog through the related links. For more information, please feel free to contact us.*

Today's website management has become very complex. However, let's set aside the various complicated systems and measures for a moment and consider what is truly important for a website, returning to the fundamentals. In books related to web and marketing, as well as information sites on the internet, various measures are recommended to improve website traffic and conversion rates. [Overview] ■ Businesses that follow the same principles as websites: convenience stores ■ Commonalities between websites and convenience stores ■ Websites delayed by data acquisition ■ Basic principles of websites = Quality of the website *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

In America, IT engineers, as well as other engineers and various professions, cannot enter their jobs without graduating from a specialized department at a university. I believe that the perception of criticism towards beginners' technical mistakes as "correctness harassment" is due to unique circumstances in Japan. When writing any technical article, one would have learned the conventions of technical writing by the time they graduate from an engineering department, and they would likely not make common mistakes typical of beginners. In America, there is a clear classification regarding engineers. [Overview (Partial)] ■ "Correctness Harassment"? ■ What is an Engineer? ■ IEA and the Seoul Agreement ■ What is Engineering? *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

To understand what constitutes a "high-quality site with original and useful content," it is important for everyone to be aware of "information quality." Activities related to information quality in computer science conferences began over 10 years ago. Additionally, there is the question, "If the value of information is high when the content is surprising, does that mean that lies or dubious content are acceptable?" This is precisely the issue we are currently facing with web content. [Overview] ■ "Information quality" as adopted by Google ■ What is the value of information? ■ Is it acceptable if the content is surprising? … The importance of information quality ■ Ensuring information quality = The importance of proofreading *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

It is said that 53% of users will leave a mobile site if it takes more than 3 seconds to load. Websites that Spelldata has optimized for web performance tuning services to achieve a loading completion time of 1 second have seen their bounce rates drop to around 30%. Additionally, for all the sites we have been involved in speeding up or improving, access via smartphones exceeds 50%. If the conversion rate for smartphone access is lower than that for desktops, it may be due to speed delays. [Overview (Partial)] ■ Overview of global mobile site loading time survey ■ Overview of the relationship between loading time and bounce rate ■ Expectations for 5G, but the actual situation is uncertain ■ Still questioning the benefits of website speed optimization? *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

If you search for "Web performance improvement" or "website display speed enhancement," you will find various articles. Some of you may have actually tried some of them. If you tried it but didn't see any speed improvement, wouldn't you want to know the reason? In this blog, we will explain the concepts and key points for successfully achieving speed enhancement. [Overview] ■ Speed enhancement means reducing computational load ■ Three strategies for speed enhancement ■ First, measure, then analyze ■ The key to a successful website speed enhancement project *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

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.*

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.*

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.*