A sitemap consists of pages created specifically for search engine bots and crawlers. It aims at a better understanding of websites and indexing of pages. In other words, it’s a structured list of pages for search engine bots to crawl and index on your website.
With a sitemap, you can promote your content to search engines and help them index your content faster. It is also a useful way to assist search engine bots understand the structure of your website, and know which pages to crawl, their relation, or even their last update.
What if we encounter a problem with sitemap – for example, the “your sitemap appears to be an HTML page” error? Let’s look at why this error occurs, and importantly, what you can do to fix it.
- What is Google Search Console?
- Reason for the Error
- Differences between HTML and XML
- Solution for the Error
- Suggestions for Using a Sitemap Correctly
What is Google Search Console?
Google Search Console is a free tool for site owners by Google. Using Search Console, you can easily analyze your site’s performance in Google searches and see how many people are clicking through to your website from Google.
You can also access important data on your backlinks from other websites, your Core Web Vitals which assesses your website’s user experience, and more. In short, you can see whether your site is performing well, and we can use that data to make adjustments to get even more traffic from SEO.
Reason for the Error
The reason you get the “your sitemap appears to be an HTML page” error is because your file is in the wrong format. Your Sitemap should be uploaded in XML format, as Google doesn’t accept it in HTML format. An example of what your Sitemap should look like:
If you upload an HTML file as a sitemap, this error will occur.
Let’s look at the differences between HTML and XML before showing you how to deal with the error. You can also check out our article about how to submit your website to search engines if you want simply upload your sitemap to Google.
Differences between HTML and XML
XML (Extensible Markup Language)
HTML and XML are both markup languages that use tags to structure content, but they serve different purposes and have significant differences.
XML is designed to store and transport data, focusing on what data is,. The tags used in XML are not predefined as in HTML. The structure of the XML file is completely created by the user.
Unlike HTML, XML doesn’t concern itself with presentation but rather with organizing information in a structured, self-descriptive way. XML allows developers to create custom tags that define their own document structure, making it incredibly flexible for representing complex data hierarchies.
HTML (HyperText Markup Language)
HTML, on the other hand, was specifically designed for presenting content on the web and focuses primarily on how data appears in browsers. It provides a structured way to create visually appealing web pages with predefined tags that browsers can interpret to render text, images, and other media elements.
In practical applications, these differences lead to specialized uses. HTML remains the standard for web page creation, powering virtually every page you visit online.
XML, with its strict data organization capabilities, is commonly used for configuration files, data exchange between different systems, and as the foundation for more specialized markup languages like RSS feeds and sitemaps.
Solution for the “Your Sitemap Appears to Be an HTML Page” Error
The easiest way to upload your sitemap to Google Search Console for your WordPress website is to use a sitemap plugin – we recommend installing Rank Math.
Plugins like RM will automatically create a sitemap, and which you can find within the plugins settings. This will differ for various sitemap/SEO plugins, but the basic principle is the same.
Once you install the plugin, you can then upload the file /sitemap_index.xml to Google Search Console by accessing Search Console, selecting Sitemaps and then Add a New Sitemap.
This will ensure that your sitemap is in the correct XML format that Google requires. Remember that the sitemap needs to be structured according to the sitemap protocol that search engines recognize, with proper XML formatting and tags.
If you’re still encountering the HTML error after installing a plugin, you may need to check your server configuration.
Some web servers might be serving your XML files with an HTML content type header, which confuses Google. In this case, you’ll need to add proper MIME type configurations to your .htaccess file to ensure XML files are recognized correctly.
Another solution is to manually create an XML sitemap using online sitemap generators if plugins aren’t working for you. These tools will crawl your website and generate a properly formatted XML sitemap that you can download and then upload to Google Search Console.
For larger, more complex websites, consider creating multiple sitemaps organized by content type or section, then linking them together with a sitemap index file.
This approach helps search engines process your site more efficiently while staying within the size limits recommended for sitemaps (50,000 URLs per sitemap file and 50MB file size).
Conclusion
To get the most benefit from your sitemap, follow these steps as listed above. The “your sitemap appears to be an HTML page” error can be frustrating when it occurs, but you should be able to solve the problem with the steps mentioned in this article.
