Fix indexing issues with Google Search Console

Having a well-designed site and quality content is not enough to be visible on Google: your pages still need to be correctly indexed. Indexing is the process by which Google records and ranks your pages in its search engine. Without it, it is impossible to appear in the search results and therefore to generate organic traffic.

But what should you do when certain pages don't show up in Google's results, or when a technical issue prevents them from being indexed? This is where Google Search Console (GSC) comes in, a free, powerful tool provided by Google that lets you diagnose and resolve your site's indexing issues.

Checking the indexing status with Google Search Console

Before trying to fix an indexing issue, it is essential to understand how Google perceives your site and which pages are correctly indexed. Google Search Console provides a detailed report on the indexing status through the "Coverage" tab, accessible from the main menu. This report is divided into several categories: pages with errors, valid pages with warnings, valid pages, and those that are excluded from indexing.

Understanding the coverage report

When a page is flagged with an error, it means Google tried to crawl it but a problem prevented it from adding it to its index. These errors can be caused by server issues, pages that cannot be found (404) or restrictions imposed by the robots.txt file. These anomalies require a quick fix, as they prevent your site from being correctly indexed.

Pages marked as valid with warnings are generally indexed but present an issue that could affect their visibility. Google informs you, for example, that a page has been indexed despite a contradictory "noindex" tag, or that a blocked resource is preventing the content from displaying properly. These warnings are worth analysing to avoid any inconsistency in the signal sent to search engines.

Valid pages are those that have been crawled and added to Google's index without any problem. On the other hand, the presence of many excluded pages can raise questions. Google may choose to exclude certain pages for various reasons: they may be considered duplicate content, redirect to another URL, be blocked by a "noindex" directive, or simply be judged irrelevant by the algorithm.

Analysing the reasons for non-indexing

If you notice that certain strategic pages on your site are not indexed, the first step is to identify the cause. Google Search Console lets you obtain detailed information by inspecting a specific URL.

The "URL Inspection" tool lets you enter a page's address and obtain a precise diagnosis. It indicates whether the page is present in Google's index and displays the reasons why it is not, where applicable. It also shows the last date Googlebot crawled it, allowing you to check whether the problem is recent or has persisted for a long time.

If the page has never been crawled, this may indicate an accessibility issue or a lack of internal links to help the bots navigate. In this case, it is advisable to check your internal linking and ensure that the page is easily accessible from other pages on the site.

Requesting manual indexing

If an important page is not indexed and you have fixed any issues, you can speed up the process by requesting a manual crawl via Google Search Console.

The "URL Inspection" tool lets you submit a URL to Google, requesting a fresh crawl. This action does not guarantee immediate indexing, but it tells Google that an update is available, thereby increasing the chances that the page will be taken into account quickly.

Once the indexing status has been thoroughly analysed, you can identify common errors and apply the necessary fixes to optimise your site's visibility in the search results.

Identifying and fixing the most common indexing errors

After analysing the coverage report in Google Search Console, it is essential to understand the reasons why certain pages are not indexed and to make the necessary corrections. Indexing issues can have various origins: pages that cannot be found, unintentional restrictions, technical errors or content-related problems. Here is how to resolve the most frequent errors.

Fixing "URL not found (404)" errors

When a page returns a 404 error, it means it has been deleted or moved without a redirect being set up. Google considers these pages to be non-existent, which can harm the user experience and the site's authority.

SEO deindexing: when and how to remove a page from Google's results? Read the article

To resolve this problem, you first need to identify the internal links pointing to these pages and update them if an alternative version exists. If the deleted page has no relevant equivalent, it is best to leave the 404 error, as Google understands that this is a permanently deleted page. However, if it has been moved to another URL, a 301 redirect should be set up to guide Google and visitors to the new address.

Checking and editing the robots.txt file

The robots.txt file lets you control how search engines crawl your site. A poor configuration can prevent Google from accessing certain important pages. It is therefore essential to check whether any "Disallow" directives are unintentionally blocking pages that should be indexed.

For this, the robots.txt testing tool in Google Search Console is a good starting point. If a restriction is blocking an important page, you simply need to edit the file by removing the relevant directive, then test the crawl again using the URL inspection tool. Once the change has been made, an indexing request can be sent to Google to speed up how quickly the changes are taken into account.

Removing an unwanted "noindex" tag

A "noindex" meta robots tag tells search engines that a page should not be indexed. If this directive is present on a strategic page, it should be removed to allow the page to be indexed.

The check can be carried out directly in the page's source code or using Google Search Console, which indicates whether a page is affected by this directive. Once the tag has been removed, it is advisable to request a fresh crawl of the URL in the URL inspection tool so that Google can quickly update its index.

Fixing server-related crawl errors

5xx errors (such as 500 or 503 errors) indicate that the server is not responding correctly to Googlebot's requests. This problem can be caused by server overload, a poor configuration or ongoing maintenance.

To remedy this, it is important to monitor the server's status and optimise its performance. Analysing the server logs can help identify the periods when these errors occur. If they are frequent, higher-performing hosting or site optimisation (reducing loading time, improving caching) may be worth considering.

Ensuring content is relevant and not duplicated

Google may exclude certain pages from its index if it considers them to be duplicate or low-quality content. This can happen when several URLs display the same content without a clear directive on which one should be prioritised.

In this case, using the canonical tag lets you tell Google which version should be indexed. If several pages have very similar content, it is best to merge them into a single one or make changes to differentiate them. An analysis with tools such as Screaming Frog or Siteliner can help detect these duplication issues.