14 articles and notes.
Reorganize the proper use of image alt text, explaining that alt text simultaneously serves accessibility, content understanding, and image search, rather than cramming keywords into every image.
Save an SEO experiment summary about cloaking. The focus is not on imitating black hat techniques, but on understanding the experimental variables, traffic changes, and the causal relationships that cannot be over-interpreted.
Save the official Q&A compiled before the launch of Core Web Vitals in 2021, focusing on the data calculation methods and ranking impact boundaries of LCP, FID, and CLS.
Starting from the discussion of blank category pages in e-commerce, we sort out the differences between noindex and soft 404, and how changes in content, internal links, and products can serve as signals for re-examination.
Save the 2023 record Core Web Vitals indicator conversion instructions, from user interaction to the next screen drawing, to understand the experience issues that INP wants to measure.
A historical note discussing prefetch, user behavior data and machine learning together. The key point is that prefetching should be based on a balance between probability and cost.
Use a simplified web page request process to understand how Request Headers, Response Headers and 2XX, 3XX, 4XX, and 5XX status codes describe the results of resources.
shared a basic concept in 2018, explaining why the entire website should use HTTPS from three perspectives: encryption, data integrity and server verification.
Saves a practical note on using the Search Console URL inspection tool to confirm whether JavaScript content is rendered, and links back to the basic article on search engine crawling and indexing.
Save a working case that explains why HTTP's Vary: User-Agent may become an important cache signal when Dynamic Serving returns different HTML based on User-Agent.
Organizes discovery and reorganization concepts in Search Console search statistics, linking crawler behavior back to sitemaps, duplicate URLs, and troubleshooting of site-embedded pages.
Starting from the case of "searched but not yet indexed", we would like to remind you that indexing problems do not necessarily only occur in a single URL, but may also be related to the quality and structure of the entire website.
compiles a list of technical SEO issues for 2023 and puts things like redirects, image alt text, speed, titles, internal links, and indexing back into the order of actual optimization.
Organizes the differences between URL trailing slashes, HTTP/HTTPS, www and non-www versions, and explains that canonical, redirects, internal links, and sitemaps should all point to the same version.