You’re looking for information on a website, you click on a menu, then a submenu, then another link, and you end up forgetting what you were originally looking for. Most internet users are familiar with this situation. The sitemap exists to avoid this kind of unnecessary detour. It is a page that lists all the content of a site, organized by theme or category, and allows you to find any information in just a few seconds.
HTML Sitemap and Accessibility: An Underestimated Tool for Screen Readers
We often talk about the sitemap as a lever for SEO or for navigation comfort. A rarely discussed angle concerns digital accessibility. Screen reader users use the HTML sitemap as a overview to understand the site’s hierarchy. When the main navigation has complex dropdown menus or hover interactions, the sitemap becomes their main entry point.
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In practical terms, a visually impaired person arriving at an e-commerce site with dozens of nested categories will not use the hamburger menu. They will look for the “sitemap” page to scan the complete list of sections. If this page does not exist or is poorly structured, that person loses access to a large part of the content.
Let’s take a telling example: on the Chapeau Melon sitemap, each section is listed linearly, allowing any visitor to understand the content organization without manipulating an interactive menu. This type of page benefits both screen readers and hurried visitors who prefer direct access.
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Navigation Depth and Task Completion Rate: The Three-Level Rule
Have you noticed that some sites require you to click four or five times before reaching a product page or a blog article? This navigation depth has a direct effect on visitor behavior.
Tests conducted by the Baymard Institute show a strong correlation between a depth limited to three levels and improved task completion rates. In other words, when a user has to go through more than three pages to achieve their goal (find a product, fill out a form, read content), they abandon much more often.
What Three Levels Mean in Practice
Three levels mean: homepage, category, final page. For example: Home > Blog > Article. Or: Home > Services > Service Detail. The sitemap should reflect this hierarchy.
If your sitemap reveals pages buried at the fourth or fifth level, it is a warning signal. These deep pages are often invisible to visitors and to Google. A well-designed sitemap helps precisely identify these dead zones before they become a problem.
- Pages accessible in one click from the homepage receive the majority of traffic and internal “link juice.”
- Pages at the third level remain reachable by search engines if the internal linking is coherent.
- Beyond the third level, the risk of orphan pages (unlinked, unindexed) increases significantly.
Consistency Between XML Sitemap and Visible Sitemap: What Google Checks
Since the end of 2023, Google has emphasized a technical point that many site owners overlook. The consistency between the XML sitemap, the visible sitemap, and internal navigation has become a quality signal analyzed through the Search Console.
XML Sitemap and HTML Sitemap: Two Files, Two Functions
The XML sitemap is a technical file intended for crawlers. It lists the site’s URLs with metadata (last modified date, update frequency). The HTML sitemap, on the other hand, is a page visible to visitors, organized in a readable manner.
These two elements must tell the same story. If your XML sitemap contains 200 URLs but your HTML sitemap only displays 50, Google detects a discrepancy. The reports of indexed and non-indexed pages in the Search Console allow you to segment by sitemap and precisely identify orphaned or overly deep pages.
Detecting Inconsistencies Before Google
A useful exercise is to manually compare the three sources:
- The main navigation menu of the site: which pages are directly accessible?
- The HTML sitemap: which pages are listed, and in what hierarchical order?
- The XML sitemap: which URLs are declared to search engines?
- The pages actually indexed in Google (verifiable via the query “site:yourdomain.com”).
Any page present in the XML sitemap but absent from the HTML sitemap and the menu deserves special attention. It should either be added to the navigation or should not appear in the XML sitemap.
Structuring a Sitemap That Truly Serves Navigation
A sitemap that lists hundreds of links without thematic grouping serves no one. Grouping by categories reflects the search logic of visitors, not the internal logic of the company.
Why is this distinction useful? Because a visitor does not think in terms of departments or internal services. They think in terms of need: “I’m looking for a price,” “I want to understand how it works,” “I want to see examples.”
Naming Categories with Words Visitors Use
If your section is called “Solutions” but your visitors are typing “services” into Google, the sitemap should use the word “services.” The vocabulary of the sitemap must match the search vocabulary, not internal jargon.
A good sitemap reads like a table of contents: you understand the content of each section without needing to click. The headings are explicit, short, and contain the terms one would type into a search engine.
A well-structured sitemap is not just a technical index. It is a fully-fledged navigation tool that benefits hurried visitors, assistive technology users, and search engines. Regularly testing it, comparing it to the XML sitemap and the main menu, remains the most reliable method to keep a site coherent as it grows.