Free WordPress theme checker, no signup. Enter a website address to see which WordPress theme it uses: name, version, author and parent theme. The details come from the theme’s own style.css file, which the site serves to any visitor.
What the Theme Check Shows
- Theme name, version and author, as the theme declares them.
- The theme folder, which is how WordPress identifies the theme.
- The parent theme, when the site runs a child theme.
- A link to WordPress.org, when the theme is in the free directory.
- The plugins that load on the page.
How It Finds the Theme
A WordPress page loads its stylesheets and scripts from /wp-content/themes/ followed by the theme’s folder name. The checker reads that folder name from the page. It then opens the style.css file in that folder.
A theme describes itself in a header at the top of that file: Theme Name, Version, Author and, for a child theme, Template. WordPress reads the same header. The checker shows those fields as written. It reads up to two theme folders per page.
Child Themes and Parent Themes
A child theme holds a site’s own changes on top of a parent theme. Its style.css names the parent in the Template field. When the checker sees that field, it shows both: the child as the active theme, and the parent below it.
If you want the same look, the parent is the theme to get. The child is usually built for that one site.
When No Theme Shows Up
- The site is not WordPress. The checker names the platform it found instead. Our CMS Checker page explains the 18 platforms it recognizes.
- The theme inlines its styles. Some block themes load no file from the theme folder, so there is no folder name to read.
- The site is headless. WordPress holds the content and a separate front end serves the pages.
- A plugin hides the theme path, or the
style.cssfile is blocked. The checker then shows the folder name only. - A security check blocked the request. The checker says so.
“Not in the WordPress.org Directory”
That note means the theme is not one of the free themes listed on WordPress.org. It is a premium theme sold elsewhere, or a theme built for that site. The author and theme website fields usually tell you which.
Find the Theme by Hand
- Open the site and view the page source (Ctrl+U, or Cmd+Option+U on a Mac).
- Search for
wp-content/themes/. The word after it is the theme folder. - Open
/wp-content/themes/that-folder/style.csson the same site. - Read the header at the top: Theme Name, Author, Version, Template.
Related Tools
The WordPress Plugin Checker lists the plugins the same page loads. To look at the domain behind the site, use the Domain Age Checker or the DNS Lookup Tool.
WordPress Themes Found in the Last 30 Days
Of 77 WordPress sites checked here in the last 30 days, 10% ran Astra.
From this site's own log of checks, 30 days, each domain counted once with its latest result. 24 checks that ended in an error are left out. Updated 25 Oct 2026. Domains are never shown.
Frequently Asked Questions
What WordPress theme is that site using?
Enter the site’s address in the checker above. It reads the theme folder the page loads files from, opens that theme’s style.css, and shows the name, version, author and parent theme.
How can I tell which WordPress theme a website uses without a tool?
View the page source and search for wp-content/themes/. The word after it is the theme folder. Open /wp-content/themes/that-folder/style.css on the same site and read the header at the top.
What is the difference between a child theme and a parent theme?
A child theme stores one site’s changes and borrows everything else from its parent. The checker shows both. To get the same design, look at the parent theme.
Why does the checker show a folder name and no theme name?
The theme’s style.css could not be read, so the checker shows the folder name it found in the page. The folder name usually matches the theme.
Does this work on sites that are not WordPress?
It tells you the site is not WordPress and names the platform when it recognizes it, such as Shopify, Wix or Squarespace. Themes on those platforms are not identified.
Is the theme check accurate?
It reports what the theme’s own style.css says. A site owner can edit that file, so a renamed theme shows the new name. The folder name and the author field help you spot that.