What does Google say about SEO? /
Domain age and historical factors remain hotly debated topics in the SEO community. This category compiles Google's official statements regarding how domain age, history, and accumulated reputation influence search rankings. SEO professionals frequently question whether the sandbox effect truly exists for new websites, whether older domains hold inherent advantages, and how a site's history impacts current performance—including previous ownership changes, past penalties, and archived content. Google representatives have consistently addressed these concerns, particularly regarding the concept of trust built over time. Understanding these official positions helps practitioners separate persistent myths from actual ranking factors recognized by Google's algorithms. This knowledge proves invaluable when acquiring expired domains, conducting site migrations, or implementing rebranding strategies where historical signals can significantly impact future SEO performance. These declarations provide clarity on what truly matters: quality content and user experience rather than mere domain age, helping SEO specialists make informed strategic decisions based on verified information rather than speculation or outdated assumptions about temporal ranking factors.
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★★ Can lazy loading really boost your performance without hurting crawlability?
Lazy loading allows you to load only heavy resources (like images) that the user actually sees while scrolling, rather than loading everything upfront. It's a method to make heavy pages less painful t...
Martin Splitt Mar 30, 2026
★★ Do structured data markups really bloat your HTML pages?
Adding structured data can significantly increase the weight of an HTML page. Google documents many types of structured data it supports, and their accumulation can easily bloat a page with invisible ...
Martin Splitt Mar 30, 2026
★★★ Does Googlebot really stop crawling after 15 MB per URL?
By default, Googlebot fetches 15 megabytes of raw content per URL, then stops. This limit applies individually to each URL: if an HTML page references external resources, each of those resources also ...
Martin Splitt Mar 30, 2026
★★ Is lazy loading really essential to optimize your initial page weight and boost Core Web Vitals?
Lazy loading allows you to load only images and heavy content that are actually visible or near the user's viewport, rather than loading everything upfront, thereby reducing the initial weight of the ...
Martin Splitt Mar 30, 2026
★★ Is your structured data bloating your pages too much to be worth the SEO investment?
Structured data can significantly increase a page's HTML weight because it is intended for machines rather than users. Google supports many types of structured data, which can easily bloat a page....
Martin Splitt Mar 30, 2026
★★ Does structured data really slow down your crawl budget?
Structured data is designed for machines, not users. Depending on the volume of structured data added (Google supports many types), a page's HTML weight can increase considerably....
Martin Splitt Mar 30, 2026
★★★ Does optimizing page size actually benefit users more than it benefits your search rankings?
Every size optimization helps not only with search engines but especially with end users. Users definitely prefer responsive websites, and overly heavy pages harm that responsiveness....
Gary Illyes Mar 30, 2026
★★★ Is mobile-desktop parity really costing you search rankings more than you think?
During the shift to mobile-first indexing, Google discovered numerous sites where the mobile version lacked content, links, navigation, or metadata compared to the desktop version, causing ranking pro...
Martin Splitt Mar 30, 2026
★★ Can image optimization really cut your page weight by 90%?
It is recommended to optimize images for the web. An appropriately compressed image is visually identical to the original on screen, but can reduce file size from several megabytes to less than one me...
Martin Splitt Mar 30, 2026
★★ Does network compression really optimize user device storage space, or is it just a temporary fix?
Network-level compression helps reduce data transfer time, but it does not solve the storage space problem on the user's device. Once decompressed, data occupies its full size on disk....
Gary Illyes Mar 30, 2026
★★ Has mobile page weight really tripled in just one decade?
According to the Web Almanac 2025, the median weight of mobile homepage pages has increased from 845 KB in 2015 to 2.3 MB in July 2025, representing a three-fold multiplication over 11 years....
Gary Illyes Mar 30, 2026
★★★ Is page size really still hurting your SEO in 2024?
Large pages continue to pose problems for users with slow connections or limited storage space on their devices, even as networks become faster. Speed is partly related to size because the more data t...
Gary Illyes Mar 30, 2026
Why does Google enforce a strict 1MB image size limit across its developer documentation?
Internally, Google uses a linter that prevents submission to developer documentation sites if an image exceeds one megabyte. This limit is designed to maintain optimal performance on official document...
Martin Splitt Mar 30, 2026
★★ Is network compression really enough to optimize your site's crawlability?
Network-level compression helps reduce data transfer time, but does not solve the problem of storage space on the user's device or crawler. Data must be decompressed and stored locally....
Martin Splitt Mar 30, 2026
★★★ Is mobile-desktop mismatch really destroying your SEO rankings right now?
During the shift to mobile-first indexing, Google observed that a large number of pages showed differences between mobile and desktop versions (distinct URLs). Content was often missing on mobile, alo...
Martin Splitt Mar 30, 2026
★★ Does network compression really improve your site's crawl budget?
Network-level compression reduces the amount of data transferred, but doesn't decrease the storage space needed on the user's device or crawler side. It only helps accelerate the transfer....
Martin Splitt Mar 30, 2026
★★ Has mobile page weight tripled in 10 years? Why should SEO professionals care about this trend?
Data from the Web Almanac 2025 shows that the median weight of a mobile homepage has grown from 845 KB in 2015 to 2.3 MB in July 2025, representing a threefold increase over 10 years....
Gary Illyes Mar 30, 2026
★★ Is your page weight really slowing down your SEO performance?
Studies show that fast websites have better retention and conversion rates. Speed depends partly on page size: the more data to transfer, the longer the transfer and processing time....
Martin Splitt Mar 30, 2026
★★★ Why Is It Perfectly Normal to Temporarily Lose Rankings After an HTTPS Migration?
The owner of a 15-year-old financial website panicked after losing his top 3 Google rankings following an HTTPS migration. He had also changed his WordPress theme and updated his content, and was wond...
John Mueller Mar 24, 2026
★★★ Should You Worry if Google Keeps Crawling Your 404 Pages?
A user was concerned about seeing Googlebot continue to crawl non-existent pages (returning a 404), thinking it was wasting their crawl budget. John Mueller reassured the user by clarifying that these...
John Mueller Mar 24, 2026
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