An HTML sitemap serves a specific function on a blog: it displays the entire structure in the form of clickable links, accessible to both visitors and indexing bots. On a blog with archives growing every week, this page becomes the only place where the complete structure remains readable at a glance.
Crawl budget and HTML sitemap: what traditional linking does not cover
On an active blog, older articles end up buried under several levels of pagination. Search engine bots allocate a limited crawl budget to each domain. Without a direct link from a shallow page, orphaned content gradually drops out of the index.
The HTML sitemap solves this problem by placing each URL one click away from the root. It does not replace the XML sitemap, which remains a technical file intended for crawlers. The two formats serve complementary roles: XML signals the URLs and their last modified date, while HTML provides a real navigation path for visitors.
Google also specifies that sending an XML sitemap constitutes a discovery signal, not a guarantee of indexing. The HTML sitemap, on the other hand, creates a real hyperlink that the bot follows like any other internal link. Combining the two increases the likelihood that a page will be crawled.
A blog like Les Babillages de Babinette illustrates this logic well: by consulting the LES BABILLAGES DE BABINETTE sitemap, each section and each post remains accessible without going through pagination or the internal search engine.
Structure of an effective sitemap for a multi-category blog
A blog organized into categories (beauty, lifestyle, parenting, travel) requires a sitemap that reflects this hierarchy. Listing URLs flatly, without grouping, is like offering a phone directory without alphabetical order.
Grouping by taxonomy
Each main category forms a section. Subcategories or tags appear indented, followed by the corresponding articles. This layout reproduces the silo structure that search engines interpret as a coherent thematic signal.
Sorting order and updates
Two common options: reverse chronological sorting (most recent on top) or alphabetical sorting. Chronological sorting is better suited for editorial blogs, as readers often look for the latest published content. The technical point not to overlook: the sitemap must regenerate automatically with each publication. A static sitemap that forgets new articles loses all usefulness within a few weeks.
On WordPress, several plugins generate this page in real-time. We recommend checking that the chosen plugin respects HTML semantic tags (nested ul/li lists) rather than producing a block of random links.
Sitemap and WCAG accessibility: an often-overlooked compliance lever
Success criterion 2.4.5 of WCAG 2.2, level AA, requires that a set of pages provides multiple ways to locate a given page. The three classic pathways are the navigation menu, internal search, and sitemap.
On a blog, the main menu cannot list hundreds of articles. Internal search depends on the quality of server-side indexing. The HTML sitemap then becomes the safety net that ensures a user, including through a screen reader, can find any content.
- The sitemap provides a list of native links, perfectly interpretable by assistive technologies, without relying on JavaScript.
- It offers an overview to users who are not familiar with the blog’s category or tag system.
- It meets the WCAG 2.4.5 criterion in addition to the menu and search field, without additional development.
Ignoring this point exposes a professional or institutional blog to a compliance failure, while the solution takes less than an hour to implement.
Common mistakes that make a sitemap useless for navigation
Producing a sitemap is not enough. Several common mistakes negate its benefits, both for SEO and for the reading experience.
- Including noindex URLs: if a page has a noindex directive, listing it in the sitemap sends a contradictory signal to bots and muddles the crawl budget.
- Listing redirected URLs (301 or 302): the sitemap should point to the final URLs, not to intermediate addresses.
- Omitting the link to the sitemap from the footer or menu: an unfindable sitemap serves no one. The convention is for it to appear in the footer, accessible from all pages of the blog.
- Generating a sitemap without hierarchical structure: a flat list of several hundred links discourages reading and conveys no thematic information to search engines.
Checking these points takes a few minutes. The gain in readability and indexing coverage can be measured as soon as the next crawl.
Lastmod tag of the XML sitemap: the trap of the automatic date
The lastmod value in an XML sitemap indicates to bots the date of the last significant modification of a page. Google clarified in June 2023 that this data can influence crawl frequency, provided it reflects a real change in content.
Many blogs update this date with each cache regeneration or each comment publication. The result: all URLs display the same recent date, and the signal loses all value. The engine eventually ignores the tag for that domain.
The best practice is to modify lastmod only during an editorial update (adding a paragraph, correcting factual information, updating data). Cosmetic changes (theme change, adding a widget in the sidebar) do not justify a new date.
The HTML sitemap is not an SEO gimmick. It is a structural component of the blog that simultaneously serves three purposes: guiding visitors to any content, providing bots with a low-depth crawl path, and fulfilling a documented accessibility requirement. Its implementation takes little time, but its maintenance (up-to-date URLs, coherent hierarchy, absence of redirects) requires regular checks, ideally at each technical audit of the site.
