Who should use SEO SEO?

SEO SEO is a B2B product built for web developers and SEO professionals.

Does SEO SEO have a free plan?

Yes — SEO SEO is free to use.

What platforms does SEO SEO run on?

SEO SEO runs on the web and embeddable surfaces.

Is SEO SEO still active?

Unverified. SEO SEO has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to SEO SEO?

Similar projects tracked by PulseGate include SEO Inspector, SEO Meta Inspector, and SEO Tag Inspector.

Who develops SEO SEO?

SEO SEO is developed by Thomas Czernik.

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SEO SEO

Name: SEO SEO
Author: Thomas Czernik

mozilla.orgSEO audit & analysis

SEO SEO is a Firefox extension that extracts and displays a webpage’s title, meta description, canonical link, and index/noindex status. It is intended for web developers, SEO professionals, and others who need to inspect page metadata quickly.

FreeWebEmbeddable

Visit mozilla.org

8alternatives

6features

2023since

Overview

6 features

In the SEO audit & analysis space, SEO SEO takes a focused approach. It focuses on checking webpage metadata and indexing directives without manually inspecting page source. It is built as a B2B product for web developers and SEO professionals. SEO SEO is free to use. It ships for the web and embeddable surfaces.

It is developed by Thomas Czernik, and it first shipped in 2023. PulseGate's similarity index places it among 8 comparable projects. Key capabilities include title inspection, description inspection, and canonical link check. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Title inspection
Description inspection
Canonical link check
Index status check
Noindex detection
Metadata overview

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed17 Sep · 08:50 UTC
SEO SEO verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about SEO SEO

What does SEO SEO do?: SEO SEO focuses on checking webpage metadata and indexing directives without manually inspecting page source. It is catalogued under SEO audit & analysis on PulseGate.
Who should use SEO SEO?: SEO SEO is a B2B product built for web developers and SEO professionals.
Does SEO SEO have a free plan?: Yes — SEO SEO is free to use.
What platforms does SEO SEO run on?: SEO SEO runs on the web and embeddable surfaces.
Is SEO SEO still active?: Unverified. SEO SEO has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to SEO SEO?: Similar projects tracked by PulseGate include SEO Inspector, SEO Meta Inspector, and SEO Tag Inspector.SEO Inspector SEO Meta Inspector SEO Tag Inspector
Who develops SEO SEO?: SEO SEO is developed by Thomas Czernik.
How long has SEO SEO been around?: SEO SEO first shipped in 2023.

At a glance

Pricing: Free
Platforms: Web
Built for: web developers and SEO professionals
Model: B2B
Solves: Checking webpage metadata and indexing directives without manually inspecting page source.

Registered as

Firefox Add-ons: seo-seo

Developer

Thomas Czernik

Index record

Indexed: 17 Sep 2026
Lifecycle: Alive
Last seen: 17 Sep 2026

Identity audit (13)

Slug: seo-seo-mozilla-org
Lifecycle state recorded: 17 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 17 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 17 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/seo-seo

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