What does Google say about SEO? /
Martin Splitt is a Developer Advocate at Google, specializing in JavaScript rendering and modern web application indexing. He created the 'SEO Mythbusting' video series and regularly explains how Googlebot handles JavaScript frameworks. His statements are essential for developers looking to optimize the SEO of their applications.
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🕒 ~30s 🎯 3 questions 📚 SEO Google
★★ 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 ...
Mar 30, 2026 ⚡ Analysis available
★★★ Does Googlebot really cap crawling at 15 MB per URL?
By default, Googlebot retrieves 15 megabytes of raw content per URL, then stops. This limit applies to each URL individually: if your HTML references other resources, those also have their own 15 MB l...
Mar 30, 2026 ⚡ Analysis available
★★ 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....
Mar 30, 2026 ⚡ Analysis available
★★★ Is resource size really the make-or-break factor for your website's speed?
A site's speed depends partly on its size: the larger the volume of data to transfer, the longer it takes the network to transmit it and the longer the device's processor takes to process and display ...
Mar 30, 2026 ⚡ Analysis available
★★ 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....
Mar 30, 2026 ⚡ Analysis available
★★★ 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...
Mar 30, 2026 ⚡ Analysis available
★★★ 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...
Mar 30, 2026 ⚡ Analysis available
★★★ Does Googlebot really stop crawling after 15 MB per URL?
By default, Googlebot retrieves 15 megabytes of raw content per URL, then stops. This limit applies to each URL individually: if your HTML references other resources, those resources each have their o...
Mar 30, 2026 ⚡ Analysis available
★★ 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 ...
Mar 30, 2026 ⚡ Analysis available
★★ 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....
Mar 30, 2026 ⚡ Analysis available
Is Google really processing 40 billion spam URLs every single day?
Google detects and processes billions of spam URLs every day. The exact figure mentioned on Google's official blog reaches 40 billion URLs per day....
Mar 30, 2026 ⚡ Analysis available
★★ 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...
Mar 30, 2026 ⚡ Analysis available
★★★ Is your desktop content disappearing from Google rankings because it's missing on mobile?
If content present on the desktop version is missing from the mobile version, the site won't be able to rank for queries related to that missing content, because mobile-first indexing prioritizes the ...
Mar 30, 2026 ⚡ Analysis available
★★★ Is your mobile site missing critical content that exists on desktop?
During the rollout of mobile-first indexing, Google observed numerous cases where mobile and desktop versions of the same content (different URLs) presented significant gaps: missing content, absent l...
Mar 30, 2026 ⚡ Analysis available
★★ 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....
Mar 30, 2026 ⚡ Analysis available
★★★ 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...
Mar 30, 2026 ⚡ Analysis available
★★★ Does the 15 MB Googlebot crawl limit really kill your indexation, and how can you fix it?
Googlebot retrieves a default of 15 megabytes of raw content (raw bytes) per URL, then stops. This 15 MB limit applies to each URL individually: if your HTML references other resources, each one has i...
Mar 30, 2026 ⚡ Analysis available
★★★ Why does modifying canonicals with JavaScript create contradictory signals that confuse Google?
When a canonical tag is present in the initial HTML and then modified by JavaScript, this creates mixed signals that are difficult to interpret. Google discourages changing metadata with JavaScript be...
Feb 26, 2026 ⚡ Analysis available
★★★ Are hreflang tags really ignored by Google when placed in the <body>?
When link hreflang tags are moved into the <body> (for example due to a script injecting an iframe that prematurely closes the <head>), they are correctly ignored by Google's infrastructure. These tag...
Feb 26, 2026 ⚡ Analysis available
★★ Does a clean website really boost your credibility in Google's eyes?
Having a well-designed website with an appropriate domain name and HTTPS strengthens the credibility and trust users place in a business or project, compared to a presence limited to social media alon...
Feb 12, 2026 ⚡ Analysis available
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