SEO Extension
Your Website Inspector Browser Add-on
The streamlined browser add-on for quick on-page & technical SEO audits
On-page and technical SEO in a nutshell. The SEO Inspector Extension is a free browser extension that provides you with all the key SEO signals of a website with just one click and gives you an initial overview for individual URLs—clear, high-performance, and without any unnecessary bells and whistles. By SEOs for SEOs, web designers, and online marketers!
Download & Installation
- Google Chrome Store: Install now on Chrome
- Microsoft Edge Add-ons: Install now on Edge
- Firefox Browser Add-ons: Install now on Firefox
For Developers
View source code & main branch on GitHub: https://github.com/SEOFREELANCERBERLIN/seo-extension-quick-website-inspector
Key Features at a Glance
Some SEO extensions are cluttered or lock important features behind a paywall. The SEO Inspector Extension was developed based on the principle of “Focus on the Essentials and the Important”:
- Maximum Performance & Cross-Browser Support: Fully compatible with Chrome, Microsoft Edge, and Firefox. No tracking, no remotely reloaded code, optimized 600px layout including an integrated light and dark mode switch.
- 1-Click Audit & Exports: Instant analysis of metadata, indexability, headlines, links, and Schema.org — including CSV link exports and JSON schema downloads.
- 1-Click Copy Features: Copy Title, Meta Description, Canonical URL, individual links, or the entire heading hierarchy directly to your clipboard.
- Smart Anchor Text Recognition: Captures standard text links as well as image links including alt texts.
- Intuitive Color-Coded Alerts & Tooltips: Detect setup errors (e.g.,
noindexor missing canonical tag) and get precise explanations via info icons at a glance. - 100% Data Protection Compliant: No personal data is collected or transmitted.
The Core Features & Modules in Detail
The extension is divided into four structured tabs that cover the most important pillars of on-page analysis:
1. Overview Tab (Basic Meta and Website Data)
| Analysis Point | Function & SEO Relevance | Color Scheme & Features |
|---|---|---|
| SEO Title | Displays the website title and character count. Important for SERP snippets. | Character Count Badge & Copy Button |
| Meta Description | Displays the meta description and character count for snippet optimization. | Character Count Badge & Copy Button |
| URL & Canonical URL | Displays the URL and extracts the Canonical URL to prevent duplicate content. | Green (Present) / Red (Missing / Canonicalised) & Copy Button |
| Robots Tag | Identifies control signals (index, noindex, follow, nofollow). |
Green (index/follow), Red (noindex/nofollow) & Indexable Badge |
| Word Count | Calculates the text volume on the page (counts all visible words including menus and footers). | Dynamic Text Output |
| robots.txt Link | Direct link to the robots.txt file for the current domain (fixed in the footer). |
Direct Clickable Link |
Why the color scheme? For a very quick overview. Thanks to the visual distinction between green and red, you can spot errors in indexing or with the canonical tag in a matter of seconds.
2. Headlines Tab (Headings Structure & Export)
A clean heading hierarchy is important for search engine crawlers, AI bots, and accessibility.
- Matrix Overview: Shows the exact number of all existing H1 through H6 tags at a glance.
- Hierarchical Tree & Export: All headings are displayed with depth indentation and can be copied directly using the 1-click „Copy Structure“ button.
3. Links Tab (Internal & External Link Distribution)
Control of PageRank and crawling paths.
- Sub-Tabs & Anchor Texts: Separate lists for internal and external URLs including their respective anchor texts (with fallback for image links).
- CSV Export: Export all links including URL and anchor text as a clean CSV file.
4. Schema Tab (Structured Data / Schema.org)
Automatic extraction of all application/ld+json scripts.
- Badges for instant detection of found types as well as a full JSON download button for the raw data.
Why This Extension Was Developed
Specialists in SEO, GEO, web design, and development need reliable website data without distractions or cluttered interfaces.
Frequently Asked Questions (FAQ)
Is the extension free?
Yes, the extension is 100% free and ad-free.
What data does the tool read?
Only DOM data that the browser receives anyway when loading the page. No external server requests are made.
Which browsers are supported?
The extension is officially available for Google Chrome, Microsoft Edge, and Mozilla Firefox.
Developed by Manuel Stürkat — SEO, GEO & Web Development