Is SeoQuake SEO extension safe?

Low risk

SeoQuake SEO extension sends the domain and URL of every page visited to Semrush-owned API servers on all websites.

On each page load, the extension's content script triggers background requests that include the current page's domain and full URL in calls to bl.publicapi.semrush.com and seoquake.publicapi.semrush.com. These requests fire automatically across all HTTP and HTTPS sites with no user interaction required. The extension also ships a hardcoded OAuth client_secret in its source, which is transmitted during token exchanges with oauth.semrush.com.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

SeoQuake Teamv3.9.9Firefox Add-ons
19Risk
Who publishes it

SeoQuake Team - no other listings under this identity, 5 shared hostnames

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
SeoQuake Team

Shared hosts - 5 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

oauth.semrush.com
Also called by 3 other listings, including SEOquake
seomofo.com
Also called by 3 other listings, including SEOHERO - Professional SEO Audit
instantdomainsearch.com
Also called by 4 other listings, including AI Personal Assistants - Get More Done
bl.publicapi.semrush.com
Also called by 6 other listings, including SEOquake, SERP X-Ray
seoquake.publicapi.semrush.com
Also called by 6 other listings, including SEOquake, SERP X-Ray

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 3.9.9. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    http://*/*

  • Read and change your data on every secure site you visit

    https://*/*

  • Read and change your data on www.seoquake.com

    https://www.seoquake.com/

  • Add items to the right-click menu

    contextMenus

  • See the address and title of every tab you have open

    tabs

  • Store data in your browser

    storage

  • Start, monitor and manage your downloads

    downloads

Where it sends data

Destinations our analysis observed SeoQuake SEO extension contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • seoquake.publicapi.semrush.com

    SeoQuake SEO extension sends data to seoquake.publicapi.semrush.com. 2 other extensions we have analyzed send data here.

  • bl.publicapi.semrush.com

    SeoQuake SEO extension sends data to bl.publicapi.semrush.com. One other extension we have analyzed sends data here.

  • oauth.semrush.com

    SeoQuake SEO extension sends data to oauth.semrush.com. No other extension we have analyzed sends data here.

Updated 2 November 2026amo-3036