NotFair is an open source tool or library for SEO, metadata, crawling, routing, or website optimization.
Nightwatch is an SEO rank tracking and AI visibility platform. It tracks rankings across 107,000+ locations and monitors citations in ChatGPT, Claude, Gemini and Perplexity. The tool combines search rank and AI citation data in one interface, with nightly refreshes. An agency version supports client management and white-label reports. Paid plans bill by keywords tracked with unlimited seats.
LibreCrawl is a free, open-source SEO crawler offered as an alternative to Screaming Frog. It performs technical audits covering meta tags, schema markup, hreflang, social tags and PageSpeed metrics, and integrates Playwright for JavaScript rendering of single-page applications. The project is MIT-licensed and can be self-hosted, with CSV, JSON and XML exports. A REST API provides programmatic control of crawls.
Mangools is a suite of SEO tools for keyword research, SERP analysis, rank tracking, backlink analysis and competitor research. Its tools include KWFinder, SERPChecker, SERPWatcher, LinkMiner and SiteProfiler, with a keyword database of over 2.5 billion keywords. Rank tracking is weekly, with daily tracking on the Agency plan.
SerpBear is an open source search engine position tracking app. It tracks a website's keyword positions in Google and sends email notifications about position changes. It uses third-party scrapers or proxy IPs to scrape Google search results, with Basic, Custom and Smart scrape strategies. A built-in API supports reporting tools, and Google Ads and Search Console integrations are available.
MozBar is a free browser extension for Google Chrome and Firefox that supports SEO research while browsing. It shows metrics such as Page Authority, Domain Authority and Spam Score, and displays link metrics during Google searches. The free version requires no subscription; some features are available only with a Moz Pro subscription.
SerpWatch is an SEO rank tracking tool for marketers and agencies. It tracks keyword rankings, sends rank-drop notifications, and includes client management, white-label client portals, report building and a local rank tracker. Pricing is based on monthly keyword checks, with plans from $29 to $199 per month billed annually.
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Nightwatch is an SEO rank tracking and AI visibility platform. It tracks rankings across 107,000+ locations and monitors citations in ChatGPT, Claude, Gemini and Perplexity. The tool combines search rank and AI citation data in one interface, with nightly refreshes. An agency version supports client management and white-label reports. Paid plans bill by keywords tracked with unlimited seats.
LibreCrawl is a free, open-source SEO crawler offered as an alternative to Screaming Frog. It performs technical audits covering meta tags, schema markup, hreflang, social tags and PageSpeed metrics, and integrates Playwright for JavaScript rendering of single-page applications. The project is MIT-licensed and can be self-hosted, with CSV, JSON and XML exports. A REST API provides programmatic control of crawls.
Mangools is a suite of SEO tools for keyword research, SERP analysis, rank tracking, backlink analysis and competitor research. Its tools include KWFinder, SERPChecker, SERPWatcher, LinkMiner and SiteProfiler, with a keyword database of over 2.5 billion keywords. Rank tracking is weekly, with daily tracking on the Agency plan.
SerpBear is an open source search engine position tracking app. It tracks a website's keyword positions in Google and sends email notifications about position changes. It uses third-party scrapers or proxy IPs to scrape Google search results, with Basic, Custom and Smart scrape strategies. A built-in API supports reporting tools, and Google Ads and Search Console integrations are available.
MozBar is a free browser extension for Google Chrome and Firefox that supports SEO research while browsing. It shows metrics such as Page Authority, Domain Authority and Spam Score, and displays link metrics during Google searches. The free version requires no subscription; some features are available only with a Moz Pro subscription.
SerpWatch is an SEO rank tracking tool for marketers and agencies. It tracks keyword rankings, sends rank-drop notifications, and includes client management, white-label client portals, report building and a local rank tracker. Pricing is based on monthly keyword checks, with plans from $29 to $199 per month billed annually.
