Canonical URL Checker - Validate rel=canonical for SEO

Validate hreflang implementation (<link rel="alternate" hreflang=...>) to prevent international SEO issues. Detects missing/duplicate hreflangs, invalid language-region codes, missing self reference, and optional reciprocal hreflang checks.

SEO Audit Pro

botflowtech/seo-audit-pro

Professional-grade SEO audit tool built for agencies, developers, and marketers. Extract 30+ SEO data points from any webpage including Title Tags, Meta Descriptions, H1-H6 Headings, Status Codes, Canonical URLs, Open Graph tags, Twitter Cards, JSON-LD structured data, and comprehensive SEO health.

SEO Duplicate Content Detector

gr_59017/seo-duplicate-content-detector

Detects duplicate or identical content across multiple webpages by analyzing visible page text. Helps identify SEO duplicate content issues, content reuse, and potential ranking risks using simple content comparison and scoring.

Simple SEO Data Extractor

onescales/simple-seo-data-extractor

Grab SEO data from any webpage / URL and export the URL, Title Tag, Meta Description, Meta Keywords, Status Code, H1, H2, Canonical Tag and Meta Robots easily. Run the scraper for 1-100,000 pages. Run one time or on schedule or via API and Get an SEO Report for Any Site.

Comprehensive SEO analysis tool. Extract meta tags, analyze keywords, check page structure, and get actionable SEO recommendations. Perfect for quick SEO audits and on-page optimization.

SEO Rank Checker

masiting/seo-rank-checker

SEO Rank Checker lets you instantly check domain SEO metrics using Semrush, Moz, and Majestic. Built for automation, APIs, and scalable SEO workflows.

Complete SEO Audit Tool - Comprehensive Website SEO Analysis

smart-digital/complete-seo-audit-tool

Analyzes websites for SEO issues across meta tags, technical SEO, performance, links, and images. Generates 0-100 SEO scores per page with detailed recommendations and site-wide summary.

Analyze SEO meta tags for any list of URLs: title tag, meta description, canonical URL, robots meta, Open Graph, Twitter Cards, viewport, and hreflang. Produces a structured report with warnings and an SEO score for audits and QA.

Check if a website has a valid favicon and icon setup for SEO and UX. Detects <link rel=icon> tags, default /favicon.ico, Apple touch icons, mask-icon, and web manifest icons. Validates URLs, HTTP status codes, content types, and reports missing/broken icons.