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age, helping SEO specialists make informed strategic decisions based on verified information rather than speculation or outdated assumptions about temporal ranking factors.
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★★★ Should You Use a 301 or 302 Redirect for a Temporary Domain Migration?
An SEO specialist asked John Mueller an interesting question on Twitter. Facing a situation dreaded by many experts, he is forced to migrate a domain from www.domain to newshop.domain, then return to ...
John Mueller Mar 14, 2023
★★★ Does Google really detect WEBP format through the HTTP header rather than the file extension?
Google recognizes image format (WEBP or others) primarily through the Content-Type header in the HTTP response, not by the file extension. The HTTP header is generally sufficient to identify the image...
Gary Illyes Mar 09, 2023
★★ Does Google really retry indexing your pages after a 401 error or server downtime?
When a site is blocked by password (401) or inaccessible, Google's systems automatically retry from time to time. These crawl errors appear in Search Console. When the content becomes accessible again...
John Mueller Mar 09, 2023
★★★ Does Google offer a button to force massive reindexing of a website after a redesign?
There is no button to request massive reprocessing of an entire website. This happens automatically over time. You can use a sitemap to signal changes (done automatically by e-commerce platforms), or ...
John Mueller Mar 09, 2023
★★★ Does LCP really only measure what's visible in your viewport at load time?
For page speed, Google uses Core Web Vitals including Largest Contentful Paint (LCP), which measures the rendering time of the largest visible element in the viewport during initial load. Optimization...
John Mueller Mar 09, 2023
★★★ Should you really prioritize alt text over OCR for extracting text from images?
While Google can extract text from images via OCR, it is preferable to provide this information through the alt attribute. This helps screen readers and allows you to better explain how the image rela...
Lizzi Sassman Mar 09, 2023
★★★ Do you really need to notify Google when redesigning your website?
When updating a website, no special action is required. Google automatically reprocesses the site and updates search results. It is recommended to redirect old URLs to new ones, or return a 404/410 co...
John Mueller Mar 09, 2023
★★★ Why does Google insist on isolating site migrations from any other redesign work?
When migrating a large number of pages to another site, you must minimize error risks by isolating this change. Do not make other major modifications such as a redesign or restructuring. Redirect all ...
Lizzi Sassman Mar 09, 2023
★★★ Does multilingual duplicate content really hurt your international SEO rankings?
There is no penalty for duplicate content when identical content exists in the same language across multiple markets. Google may treat a page as a duplicate and select a canonical URL, but hreflang an...
John Mueller Mar 09, 2023
★★ Strong vs Bold: Does Google really make a difference between these two tags?
The strong and b tags both specify that text is important, but they are not identical. The strong tag should be used for elements that are intensely important, urgent or serious (such as a warning). S...
Lizzi Sassman Mar 09, 2023
★★ Should you use hreflang 'de' or 'de-de' to target German speakers?
For hreflang annotations, using 'de' (without country) or 'de-de' depends on your objectives. Use simply 'de' if you accept that users from all German-speaking countries (Switzerland, Austria) access ...
Lizzi Sassman Mar 09, 2023
★★ Does nesting your structured data really help Google understand what your page is actually about?
Nesting structured data helps Google understand the main focus of your page. For example, placing a review nested within a recipe clearly indicates that the page is primarily a recipe. Always verify t...
Lizzi Sassman Mar 09, 2023
★★ What does Google really consider a prominent video, and why does it matter for your search rankings?
A video is considered prominent if it's visible when the page loads (above the fold) and properly sized (neither too small nor too large). The error in Search Console may be intentional depending on y...
Lizzi Sassman Mar 09, 2023
★★ Why can your robots.txt be interpreted differently by Search Console and Google Search?
Search Console historically used a different Java implementation of the robots.txt parser compared to the C++ parser used by Google Search, which caused behavioral differences. For example, the BOM (B...
Edu Pereda Mar 08, 2023
★★ Should You Stop Chasing Backlinks to Rank in 2024?
During his presentation at PubCon, Gary Illuyes also stated that links were not as important as SEOs believe. At least, they have lost weight over the past several years and will continue to lose weig...
Google Mar 06, 2023
★★★ Should You Really Update the lastmod Tag in Your XML Sitemap?
John Mueller, once again, answered a question about updating the lastmod tag in sitemap files. Our SEO king indicated that such an update only makes sense when there's a significant change. Furthermor...
John Mueller Mar 06, 2023
★★ Should You Really Use ChatGPT to Rewrite or Translate Your SEO Content?
On Twitter, John Mueller engaged with several users about rewriting content via ChatGPT with the aim of modifying an article or facilitating its translation into another language. While he doesn't ope...
John Mueller Mar 06, 2023
★★★ Can a single failed AJAX request destroy the indexability of your entire page?
If a site uses multiple JSON/AJAX endpoints to construct a page and a single request fails without appropriate error handling, this can cause the entire page render to fail for Googlebot, generating a...
Jamie Indigo Mar 02, 2023
★★ Are JavaScript frameworks silently creating soft 404 errors on your high-inventory site?
Soft 404s can occur on websites using JavaScript frameworks, particularly on large-scale sites with dynamic inventory management systems that perform requests for each page call....
Jamie Indigo Mar 02, 2023
★★ Can hosting robots.txt across multiple CDNs silently sabotage your crawl budget?
When a robots.txt file is hosted across multiple CDNs, they don't all update simultaneously, which can cause inconsistencies in blocking or unblocking resources for Googlebot....
Jamie Indigo Mar 02, 2023
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