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age, helping SEO specialists make informed strategic decisions based on verified information rather than speculation or outdated assumptions about temporal ranking factors.
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★★ 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
★★ Is Google really enforcing a strict 1 MB limit on images—and what does that tell you about SEO priorities?
Google uses an internal linter that prevents the submission of images larger than 1 MB on developer documentation sites, underscoring the importance of image optimization....
Martin Splitt Mar 30, 2026
★★ Is lazy loading really a must-have SEO performance lever you should activate systematically?
Lazy loading (deferred loading) allows you to load only heavy resources such as images when the user scrolls toward them, rather than loading everything upfront. This reduces the initial page load....
Gary Illyes Mar 30, 2026
★★ Does structured data really bloat your HTML and hurt page performance?
Adding structured data (structured metadata) can considerably increase the weight of an HTML page because these are metadata intended for machines, not users. Google supports many types of structured ...
Gary Illyes Mar 30, 2026
★★★ Does page loading speed really impact your conversion rates?
Studies show that faster websites have better retention and conversion rates. Reducing page size helps improve speed, because less data to transfer means faster loading and processing....
Martin Splitt Mar 30, 2026
★★ Is exploding web page weight hurting your SEO? Here's what you need to know
According to the Web Almanac 2025, the median weight of a mobile homepage rose from 845 KB in 2015 to 2.3 MB in July 2025—a threefold increase. This growth substantially exceeds the improvement in Int...
Gary Illyes Mar 30, 2026
★★ Does your website's overall size really hurt your SEO performance?
In the context of weight and size, it's more relevant to talk about webpages rather than websites. The notion of a 'heavy site' doesn't really make sense in SEO — it's the weight of individual pages t...
Gary Illyes Mar 30, 2026
★★★ Does page size really matter for SEO when internet connections keep getting faster?
Although internet connections are getting faster, the increase in webpage size is outpacing the increase in median transfer speeds for mobile connections. Size therefore remains an important factor fo...
Martin Splitt Mar 30, 2026
★★ Does site speed really impact your conversion rates?
Google acknowledges that studies show faster websites have better retention and conversion rates. Speed depends partly on page size: the more data to transfer, the longer the loading time....
Martin Splitt Mar 30, 2026
★★ Does page speed really impact conversions according to Google?
Studies show that faster websites have better retention and conversion rates. Speed depends partly on page weight: the more data there is to transfer, the longer the network and processor take to proc...
Martin Splitt Mar 30, 2026
★ Should you really cap your images at 1 MB to satisfy Google?
Internally at Google, a linter prevents the submission of images larger than 1 megabyte on documentation sites intended for Search developers. This limit helps maintain lightweight pages....
Gary Illyes Mar 30, 2026
★★★ Why is mobile-desktop parity sabotaging your rankings in Mobile-First Indexing?
When transitioning to Mobile-First Indexing, Google observed that a large number of pages lacked parity between mobile and desktop versions. Content was missing, links were absent, navigation and meta...
Martin Splitt Mar 30, 2026
★★★ Is Google Really Measuring Page Weight the Way You Think It Does?
For Google, page weight (page size) corresponds to the raw bytes transferred by URL, and not the total sum of all downloaded resources. This definition differs from that of users who often consider th...
Martin Splitt Mar 30, 2026
★★ Should you still worry about page weight for SEO in 2024?
Google recommends using caching, network-level compression, and lazy loading (deferred loading) to reduce the impact of page weight on user experience and performance....
Martin Splitt Mar 30, 2026
★★★ Does page weight really affect user experience and SEO performance?
Google acknowledges that page weight remains a problem for user experience, particularly on slow connections. Faster websites have better retention rates and conversion rates according to studies ment...
Martin Splitt Mar 30, 2026
★★★ Is content disparity between mobile and desktop killing your rankings in mobile-first indexing?
During mobile-first indexing, Google has found that a large number of pages present significant differences between their mobile and desktop versions: missing content, absent links, different navigati...
Martin Splitt Mar 30, 2026
★★ Are structured data slowing down your pages enough to harm your SEO?
Structured data, which are intended for machines rather than users, can considerably increase the weight of a page. Google supports many types of structured data, and their accumulation on a page can ...
Martin Splitt Mar 30, 2026
★★ 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
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