Browser extension
Install the RankParse extension on Chrome, Edge or Firefox to audit on-page SEO and pull domain metrics for any page.
The RankParse browser extension brings on-page SEO inspection and on-demand domain metrics into your browser. It runs on Chrome, Microsoft Edge and Firefox from a single codebase. The on-page audit works with no account. Domain metrics use the same data and credits as the API.
Install
- Chrome Web Store: RankParse SEO Toolkit
- Microsoft Edge Add-ons: RankParse SEO Toolkit
- Firefox Add-ons: RankParse SEO Toolkit
All store links are also on the extension page and in the dashboard under Connect agent, on the For developers tab.
Connect your API key
The on-page audit works without an account. To unlock domain metrics beyond the free preview and the search-result features:
- Open your API keys page and copy a key (the
rp_...token). - Click the RankParse icon in your browser toolbar and choose Options.
- Paste the key and save.
The key is stored in your browser's local extension storage and is sent only to api.rankparse.com. New accounts include 100 free credits, no card needed. See Authentication and Credits.
What it does
On-page audit (free, no account)
- Title, meta description, canonical, Open Graph, Twitter Card and robots
- JSON-LD and microdata schema detection
- Heading outline (H1, H2 and H3 counts and text)
- Every link on the page classified by
rel(dofollow, nofollow, UGC, sponsored), with page highlighting - Images and alt-text coverage, and internal versus external link counts
- An on-demand broken-link checker for up to 20 external links
The audit is computed locally from the page DOM and does not upload the page. The broken-link checker is the one exception: when you run it, your browser requests the links on the page (up to 20 external ones) to see whether they respond.
Domain metrics (on demand, uses credits)
Each lookup is billed like the matching API call, once per domain, and cached locally for 24 hours so you are not charged twice for the same domain:
| Metric | Credits | API endpoint |
|---|---|---|
| Domain authority, popularity rank, registration date and registrar | 1 | /v1/domain-authority |
| Top backlinks for the current domain (exportable to CSV) | 2 | /v1/backlinks |
| Referring domains | 2 | /v1/referring-domains |
| Anchor text distribution | 2 | /v1/anchor-text |
| Tech stack | 2 | /v1/tech-stack |
Without an API key, the extension shows a limited preview of domain metrics. See the extension page for the current preview allowance. The full pricing table is on Credits.
Search-result features (optional)
On Google results pages the extension can show an authority badge next to each organic result and a persistent metrics bar. These features are optional and are controlled in Options, where you can also exclude domains from lookups. Turn them off if you do not want lookups to run automatically as you browse.
Privacy
- The on-page audit reads page HTML locally and does not upload it to RankParse.
- Domain lookups send the requested domain name to RankParse. If you enable the toolbar badge, metrics bar or search-result features, they can request domain data automatically as you navigate.
- RankParse does not receive your full browsing history from the extension, but enabled lookups can leave account-linked records of the domains you queried.
- Local extension storage can hold your API key, your preferences, excluded domains, your cached account email and credit balance, and cached domain results.
- Clearing extension storage or uninstalling the extension removes the local data.
Full details are on the privacy page.
Permissions
The extension requests:
- Active tab, to read the DOM of the page you are viewing.
- Storage, to save your API key and settings and to cache domain lookups for 24 hours.
- Host access for Google results pages, for the search-result features. You can revoke it at any time in your browser's extension settings.
Troubleshooting
Source
The extension is built with WXT, TypeScript, React and Tailwind. The source is at github.com/Rankparse. Pull requests are welcome.