40 tools in On-Page SEO

C

CopyScape

β˜…β˜…β˜…β˜…β˜† 4.4
Paid

The original duplicate content checker, allowing you to search the web for copies of your content and verify that text you're publishing hasn't appeared elsewhere first.

Web duplicate content detection Copyscape Premium URL search Copysentry automated monitoring Batch search capability
I

InLinks

β˜…β˜…β˜…β˜…β˜† 4.4
Paid

A content and internal linking platform that uses entity-based NLP to map your site's topics and automatically suggest or implement internal links that reinforce topical authority.

Entity-based internal link suggestions Topic and entity mapping Automatic schema generation Content optimisation editor
S

SEOptimer

β˜…β˜…β˜…β˜…β˜† 4.4
Freemium

A lightweight SEO audit and report tool that produces clean, client-friendly scorecards covering on-page, performance, social, and usability factors in seconds.

Instant SEO audit reports White-label client reports Embeddable lead generation widget On-page, performance, and mobile scoring
S

Sitechecker

β˜…β˜…β˜…β˜…β˜† 4.4
Paid

A cloud-based website monitoring and SEO audit platform that tracks your site continuously, alerting you to new technical issues as soon as they appear rather than waiting for your next manual audit.

Continuous website monitoring On-page SEO audit Rank tracking Backlink monitoring
R

Raven Tools

β˜…β˜…β˜…β˜…β˜† 4.3
Paid

A long-running SEO and digital marketing reporting platform with white-label client reports, rank tracking, and site auditing built for agencies managing multiple clients.

White-label client reports Site auditing Rank tracking Backlink analysis
D

Dashword

β˜…β˜…β˜…β˜…β˜† 4.3
Paid

A streamlined content optimisation tool with a distraction-free editor and competitive analysis, designed for teams that want simplicity over feature overload.

Real-time content scoring Competitor content overview Keyword suggestions Clean distraction-free editor
S

Squirrly SEO

β˜…β˜…β˜…β˜…β˜† 4.3
Paid

An AI-driven WordPress SEO platform with weekly focus pages, a live assistant while you write, and a suite of tools designed to guide non-experts through a complete SEO strategy.

Weekly Focus Pages strategy system Live SEO assistant in editor SEO audit and checklist Keyword research tool
W

Web Developer Extension

β˜…β˜…β˜…β˜…β˜† 4.3
Free

A legendary browser extension for developers and technical SEOs, adding a comprehensive menu of tools for inspecting CSS, forms, images, cookies, and page structure.

Disable JavaScript and CSS Outline images missing alt text Display link information HTML and CSS validation
H

Hreflang Checker

β˜…β˜…β˜…β˜…β˜† 4.3
Free

A free dedicated tool for validating hreflang tags across international and multilingual websites, surfacing the errors that cause regional targeting to break.

Hreflang tag validation Return link verification Language and region code checking Non-canonical URL detection
I

Internal Link Juicer

β˜…β˜…β˜…β˜…β˜† 4.3
Paid

A WordPress plugin that automates internal linking by letting you define rules for which pages should be linked whenever specific keywords appear in your content.

Rule-based automatic internal linking Keyword configuration per post Link frequency controls Blacklist and whitelist options
W

WooRank

β˜…β˜…β˜…β˜…β˜† 4.3
Paid

A comprehensive website review and SEO scorecard platform with detailed technical analysis, keyword tracking, and actionable campaign management for ongoing site improvement.

Detailed website review reports Campaign-based progress tracking Keyword rank tracking Competitor analysis
S

SEO Minion

β˜…β˜…β˜…β˜…β˜† 4.3
Free

A free Chrome and Firefox extension that packs on-page analysis, SERP preview, hreflang checking, and broken link scanning into a single lightweight toolbar button.

On-page SEO analysis Hreflang checker Broken link scanner SERP snippet preview