Martin Splitt

★★★ Does Google really render ALL JavaScript, even without initial server-side content?

Google renders practically all JavaScript pages. The presence of initial server-side content does not influence the decision to render or not render a page's JavaScript. A heuristic exists for certain...

Nov 25, 2020 ⚡ Analysis available

★★ How can you ensure that Googlebot is genuinely Googlebot and not an imposter?

Many fake bots claim to be Googlebot. You must always verify that requests come from authentic Google IP addresses, as anyone can declare themselves as Googlebot in server logs....

Nov 25, 2020 ⚡ Analysis available

★★★ Is it true that Google actually limits CPU time during JavaScript rendering?

Google limits CPU time during JavaScript rendering, primarily to detect infinite loops and faulty code. Optimization should focus on user performance rather than a specific technical limit, as these t...

Nov 25, 2020 ⚡ Analysis available

★★★ Why does Google display empty pages even when your JavaScript site is working perfectly?

If a JavaScript request to an API (like /api/cats) is blocked by robots.txt, Googlebot will not be able to load it even if it works in browsers. Browsers ignore robots.txt, but Google respects it, whi...

Nov 25, 2020 ⚡ Analysis available

★★★ Can blocking JavaScript really stop Google from indexing all the content on your pages?

If JavaScript code blocks the rendering of part of the page and never completes its execution, Google will stop rendering. The content that this JavaScript was supposed to load and any following HTML ...

Nov 25, 2020 ⚡ Analysis available

★★★ How long does Googlebot really wait for JavaScript rendering?

There is no specific deadline that Googlebot expects for JavaScript rendering. The recommendation is to render content as quickly as possible. If loading takes several seconds, it is already problemat...

Nov 25, 2020 ⚡ Analysis available

★★ Does AJAX really work for SEO, or should you think twice before using it?

AJAX requests add complexity to SEO because they create more potential failure points (robots.txt, network errors, etc.). While they work if correctly implemented, they are not fantastic for SEO and r...

Nov 25, 2020 ⚡ Analysis available

★★★ Why does Google refuse to render JavaScript if the initial HTML contains a meta noindex?

If a noindex robots meta tag is present in the initial HTML, Google will not render the JavaScript page because the instruction already indicates that the page does not want to be indexed. Be careful ...

Nov 25, 2020 ⚡ Analysis available

★★ Has dynamic prerendering become a trap for indexing?

Dynamic prerendering solutions like prerender.io add latency, can crash, and require caching. If hashed JavaScript or CSS resources in the name become inaccessible due to outdated cache, the content m...

Nov 25, 2020 ⚡ Analysis available

★★ Could your deleted resources be harming your pre-render indexing?

When using cached pre-render solutions, it is essential to keep old versions of assets (JavaScript, CSS) available long enough to prevent the cached HTML from referencing resources that no longer exis...

Nov 25, 2020 ⚡ Analysis available

★★★ Is it true that Google really analyzes everything in the initial HTML before rendering?

Google analyzes the initial HTML to extract links (to add to the crawl queue), detect HTTP errors, and read meta tags (canonical, description, robots). Canonicalization begins in the initial HTML but ...

Nov 25, 2020 ⚡ Analysis available

★★★ Could a 404 page with JavaScript lead to the complete deindexing of your site?

If a page returns an HTTP 404 status code, Google treats it as an error even if JavaScript would subsequently load content. Using a 404 page to load content via JavaScript leads to the complete deinde...

Nov 25, 2020 ⚡ Analysis available

★★★ Does Google really catch duplicate content after JavaScript rendering?

Google computes content hashes on the initial HTML for deduplication, but subsequently compares these hashes with those obtained after JavaScript rendering. The final decision regarding duplication an...

Nov 25, 2020 ⚡ Analysis available

★★★ Does Google really render 100% of JavaScript pages before indexing?

Contrary to common belief, practically all pages (almost 100%) are rendered in JavaScript before being indexed. There aren't really two distinct indexing paths. Google processes the initial HTML and t...

Nov 25, 2020 ⚡ Analysis available

★★ Does Google really ignore POST requests during JavaScript rendering?

Google caches resources loaded via GET requests during JavaScript rendering but does not cache POST request responses. This can affect rendering performance and indexing consistency....

Nov 25, 2020 ⚡ Analysis available

★★★ How can you effectively test JavaScript rendering before taking your site live?

Before launching a site that uses JavaScript for rendering, test it with the Mobile-Friendly Test and check the rendered HTML in Search Console to ensure that Googlebot can see all the expected conten...

Nov 11, 2020 ⚡ Analysis available

★★★ Why does a website redesign cause rank drops even without content changes?

If the site's structure, content, or URLs change during a redesign, it will affect ranking because Google will need to re-gather signals. A strictly identical copy (same URLs, same content) will have ...

Nov 11, 2020 ⚡ Analysis available

★★★ Hreflang: Why does Google still stress this tag for multilingual content?

For locale-adapted content, set up hreflang to indicate to Google all available language versions (EN-US, FR-FR, DE-DE, etc.) so it understands and groups these variants as a single piece of content....

Nov 11, 2020 ⚡ Analysis available

★★★ How can you make your hyper-local content URLs discoverable without sacrificing traffic?

For hyper-localized content by city, ensure that each version has a unique URL and that these URLs are discoverable via a sitemap or a navigation structure with clear internal links....

Nov 11, 2020 ⚡ Analysis available

★★★ Can user personalization trigger a penalty for cloaking?

Displaying personalized content to users (e.g., favorite restaurants at the top of the list) based on their preferences is not considered cloaking, as long as the content meets user expectations and i...

Nov 11, 2020 ⚡ Analysis available