Who is Seo Extension for?

Inferred · not functionally tested: Seo Extension is a B2B product built for SEO professionals, marketers, and website owners.

What platforms does Seo Extension run on?

Basis unknown · not verified: Seo Extension runs on the web and embeddable surfaces.

What are alternatives to Seo Extension?

Similar projects tracked by PulseGate include SEO-tools, SEO Site Auditor, and Website SEO Checker.

Who develops Seo Extension?

Seo Extension is developed by CheckSERP.

How long has Seo Extension been around?

Seo Extension first shipped in 2013.

Back to the index

Seo Extension

Name: Seo Extension
Author: CheckSERP

checkserp.comBrowser DevTools & extensions

PulseGate's liveness check found it on 12 Sep 2026; it is registered on Firefox Add-ons and has been in the index since 12 Sep 2026. How this is checked

Chrome SEO extension, Firefox SEO extension, SEO extension in your browser. Speed up your daily SEO work today.

Basis unknown · not verified

WebEmbeddableCloud-managed

Visit checkserp.com

Overview

6 features

Purpose: Performing quick SEO and technical website checks without switching between separate tools.

Inferred · not functionally tested

Audience: SEO professionals, marketers, and website owners

Inferred · not functionally tested

Functions: data_extraction

Inferred · not functionally tested

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: unknown · license: Proprietary · platforms: WEB · deployment: browser, embeddable, cloud_managed

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: checkserp.com · addons.mozilla.org. These links do not verify the individual claims.

Seo Extension sits in PulseGate's Browser DevTools & extensions category. Inferred · not functionally tested: It focuses on performing quick SEO and technical website checks without switching between separate tools. Inferred · not functionally tested: It is built as a B2B product for SEO professionals, marketers, and website owners. Basis unknown · not verified: Seo Extension is available on the web and embeddable surfaces.

Behind Seo Extension is CheckSERP, and it first shipped in 2013. Inferred · not functionally tested: Key capabilities include indexed pages lookup, backlink lookup, and page cache lookup.

Tasks: Inferred · not functionally tested

Indexed pages lookup
Backlink lookup
Page cache lookup
Alexa rank
IP geolocation
WHOIS lookup

Topics: Inferred · not functionally tested

Built with & integrations

Framework

Vue

Runs on

BrowserEmbeddableCloud-managed

Trust & compliance

Public signals

HTTPSPrivacy Policy Terms of ServiceStore listing found

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed12 Sep · 02:24 UTC
SEO Site Tools, Site Analysis seen via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Seo Extension

What does Seo Extension do?: Inferred · not functionally tested: Seo Extension focuses on performing quick SEO and technical website checks without switching between separate tools. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Seo Extension for?: Inferred · not functionally tested: Seo Extension is a B2B product built for SEO professionals, marketers, and website owners.
What platforms does Seo Extension run on?: Basis unknown · not verified: Seo Extension runs on the web and embeddable surfaces.
Is Seo Extension still active?: PulseGate's liveness check found it on 12 Sep 2026.
What are alternatives to Seo Extension?: Similar projects tracked by PulseGate include SEO-tools, SEO Site Auditor, and Website SEO Checker.SEO-tools SEO Site Auditor Website SEO Checker
Who develops Seo Extension?: Seo Extension is developed by CheckSERP.
How long has Seo Extension been around?: Seo Extension first shipped in 2013.

At a glance

Pricing: Paid · pricing page detected
Platforms: Web
Languages: English
First seen: 12 Sep 2026
Model: B2B
Purpose: Performing quick SEO and technical website checks without switching between separate tools.Inferred · not functionally tested
Audience: SEO professionals, marketers, and website ownersInferred · not functionally tested

Registered as

Firefox Add-ons: seo-site-tools-site-analysis

Developer

CheckSERP

Index record

Indexed: 12 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 12 Sep 2026

Identity audit (12)

Slug: seo-site-tools-site-analysis-checkserp-com
Lifecycle last checked: 12 Sep 2026
Identity check: 1 linked identifier: not checked
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 12 Sep 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 12 Sep 2026
Canonical URL: https://checkserp.com/seo-extension

Cite this record

Seo Extension. PulseGate. Record last updated 12 Sep 2026. https://www.pulsegate.ai/apps/seo-site-tools-site-analysis-checkserp-com

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