Is Essential SEO Toolkit (SEO Analysis Tool) from Opace safe?

Clean risk

Essential SEO Toolkit opens the active tab URL in user-selected third-party SEO tools.

When you open the popup and click one of its SEO tool links, the extension reads the current tab URL and places it into the selected tool's URL. This sends the page URL to that third-party SEO service in the new tab, such as SEMrush, GTmetrix, Sitechecker, Majestic, Moz, Google, Responsinator, or Copyscape.

Opace Digital Agencyv5.0.1Chrome Web Store
1Risk
Who publishes it

Opace Ltd - 1 other listing from the same operator, none carrying a finding

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

Publisher
Opace Digital Agency
Declared legal entity
Opace Ltd
Registered address
Park House, Bristol Rd South, Birmingham B45 9AH, GB
Registered contact
Mr David Bryan
Website
opace.agency/contact/

Same operator - 1 listing

Published under a different store account, but sharing the registered address, contact or declared legal entity this one gave the store.

1 more listing in the relationship graph, on paid plans →

Shared hosts - 4 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.

online.seranking.com
Also called by 2 other listings, including Sprout SEO Extension 🌱
thinkwithgoogle.com
Also called by 2 other listings, including Perseo
sitechecker.pro
Also called by 4 other listings, including SiteChecker.pro
responsinator.com
Also called by 5 other listings, including SEO META 1 COPY, SEO META 1 COPY

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 4.1. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to. The current listed version is 5.0.1, which we have not unpacked yet.

  • Read and change your data on every site you visit

    http://*/*

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

    https://*/*

  • Store data in your browser

    storage

  • Act on the current tab, but only after you click the extension

    activeTab

  • Run its own code inside the pages you visit

    scripting

Where it sends data

Destinations our analysis observed SEO Toolkit 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.

  • search.google.com

    SEO Toolkit sends data to search.google.com. 2 other extensions we have analysed send data here.

  • analytics.moz.com

    SEO Toolkit sends data to analytics.moz.com. One other extension we have analysed sends data here.

  • gtmetrix.com

    SEO Toolkit sends data to gtmetrix.com. One other extension we have analysed sends data here.

  • majestic.com

    SEO Toolkit sends data to majestic.com. One other extension we have analysed sends data here.

  • copyscape.com

    SEO Toolkit sends data to copyscape.com. No other extension we have analysed sends data here.

  • responsinator.com

    SEO Toolkit sends data to responsinator.com. No other extension we have analysed sends data here.

  • semrush.com

    SEO Toolkit sends data to semrush.com. No other extension we have analysed sends data here.

  • sitechecker.pro

    SEO Toolkit sends data to sitechecker.pro. No other extension we have analysed sends data here.

Updated 30 September 2026icagkiolfkmndbggheneeamfbnobcdma