Trailing Slash SEO Checker

Tracking since Apr 1, 2026.

Changelog

• May 11, 2026
  description

  This tool was developed because trailing slash issues are often overlooked, and many SEO tools fail to check for them. These checks usually require manual verification, which is rarely performed consistently. With a single click, this extension checks whether your URLs are correctly configured or if there’s a risk of duplicate content. It verifies trailing slash consistency, status codes, and canonical tags to ensure your website is optimized and free from duplicate content issues.
  
  v1.0.7:
  - Bug fix: Extension no longer hangs when the alternate URL returns a 301 redirect.
  
  What's new in v1.0.6:
  - Both URL variants are now analyzed simultaneously, including canonical, robots, and SEO score (0–100)
  - Detects redirect loops, canonical loops, canonicals pointing to unrelated URLs, soft 404s, duplicate content, and missing canonicals
  - Flags conflicting noindex + canonical combinations (Google advises against this)
  - Reads x-robots-tag HTTP header in addition to meta robots
  - Shows where the alternate URL landed and displays "— redirects" for canonical/robots when a redirect is detected
  - Each scenario includes a color-coded verdict (green/orange/red) and a clear action point
  - Canonical displays the tail of the URL so the trailing slash is always visible; hover for full URL
  - Copy button for both URLs
  - No scrollbar — popup height adjusts to content
  - Fixed: popup no longer closes mid-check when navigating back to the original URL

  This tool was developed because trailing slash issues are often overlooked, and many SEO tools fail to check for them. These checks usually require manual verification, which is rarely performed consistently. With a single click, this extension checks whether your URLs are correctly configured or if there’s a risk of duplicate content. It verifies trailing slash consistency, status codes, and canonical tags to ensure your website is optimized and free from duplicate content issues.
  
  v1.0.8:
  - New logo.
  
  v1.0.7:
  - Bug fix: Extension no longer hangs when the alternate URL returns a 301 redirect.
  
  What's new in v1.0.6:
  - Both URL variants are now analyzed simultaneously, including canonical, robots, and SEO score (0–100)
  - Detects redirect loops, canonical loops, canonicals pointing to unrelated URLs, soft 404s, duplicate content, and missing canonicals
  - Flags conflicting noindex + canonical combinations (Google advises against this)
  - Reads x-robots-tag HTTP header in addition to meta robots
  - Shows where the alternate URL landed and displays "— redirects" for canonical/robots when a redirect is detected
  - Each scenario includes a color-coded verdict (green/orange/red) and a clear action point
  - Canonical displays the tail of the URL so the trailing slash is always visible; hover for full URL
  - Copy button for both URLs
  - No scrollbar — popup height adjusts to content
  - Fixed: popup no longer closes mid-check when navigating back to the original URL

• Apr 29, 2026
  description

  This tool was developed because trailing slash issues are often overlooked, and many SEO tools fail to check for them. These checks usually require manual verification, which is rarely performed consistently. With a single click, this extension checks whether your URLs are correctly configured or if there’s a risk of duplicate content. It verifies trailing slash consistency, status codes, and canonical tags to ensure your website is optimized and free from duplicate content issues.

  This tool was developed because trailing slash issues are often overlooked, and many SEO tools fail to check for them. These checks usually require manual verification, which is rarely performed consistently. With a single click, this extension checks whether your URLs are correctly configured or if there’s a risk of duplicate content. It verifies trailing slash consistency, status codes, and canonical tags to ensure your website is optimized and free from duplicate content issues.
  
  v1.0.7:
  - Bug fix: Extension no longer hangs when the alternate URL returns a 301 redirect.
  
  What's new in v1.0.6:
  - Both URL variants are now analyzed simultaneously, including canonical, robots, and SEO score (0–100)
  - Detects redirect loops, canonical loops, canonicals pointing to unrelated URLs, soft 404s, duplicate content, and missing canonicals
  - Flags conflicting noindex + canonical combinations (Google advises against this)
  - Reads x-robots-tag HTTP header in addition to meta robots
  - Shows where the alternate URL landed and displays "— redirects" for canonical/robots when a redirect is detected
  - Each scenario includes a color-coded verdict (green/orange/red) and a clear action point
  - Canonical displays the tail of the URL so the trailing slash is always visible; hover for full URL
  - Copy button for both URLs
  - No scrollbar — popup height adjusts to content
  - Fixed: popup no longer closes mid-check when navigating back to the original URL

• Apr 29, 2026
  short_description

  Checks trailing slash consistency, status codes, and canonical tags to detect SEO issues and suggest optimal redirects.

  Checks trailing slash consistency, redirect types, canonical tags and detects SEO issues.

• Apr 29, 2026
  permissions

  tabs, activeTab

  tabs, activeTab, webRequest

Permissions & access

Permissions

tabsactiveTabwebRequest

Host access

<all_urls>

Screenshots

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