Broken Link Checker is a browser extension that scans the currently active webpage for broken or redirected links. It retrieves link elements from the top and sub-frames when that option is enabled and assesses each link, checking up to five links simultaneously with a 10-second timeout per link. Results are sorted into valid and broken categories.
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An online tool that checks websites and blogs for dead links without sign-up or downloads. It tests internal and external URLs, shows HTTP error codes, and displays where bad links appear in the HTML. The free version is limited to 3000 pages, with no limit on hyperlinks within those pages.
Dead Link Checker is an online tool that crawls a website to identify broken links. Free manual checking covers single and multiple sites, while subscription packages provide automated link checking. Multi Check runs checks across multiple websites in one go and emails the report; Auto Check runs checks regularly and emails reports automatically. The tool highlights broken link building opportunities and requires no downloads.
A free online tool that scans webpages for dead hyperlinks. It checks internal and external URLs, reports the location of bad links in HTML code, shows 404 errors and other unsuccessful HTTP response codes, and supports sub-domains. The free version limits checks to 3,000 pages and allows one running session per IP address; documents and images are not checked.
Dr. Link Check is a broken link checker that crawls a website from a start URL through its HTML and CSS, examining internal and outbound links plus links to images, style sheets, and other resource files. Each link passes multiple checks, including URL validation, DNS lookup, connect check, SSL certificate check, and HTTP response check. Results can be sorted, filtered, and exported to CSV.
linkok.com is a broken link checker that scans a website periodically and emails a report summary with a link to the full report. It retries after temporary errors to reduce false positives. A free plan covers a website with up to 100 pages on monthly scans.
Is It Down Right Now checks website availability, outages, broken links, or service status from the web.
UpDownToday checks website availability, outages, broken links, or service status from the web.
Ahrefs' SEO Toolbar crawls websites to find broken links, redirects, and technical SEO issues.
SEOMacroscope crawls websites to find broken links, redirects, and technical SEO issues.
Wizardstool crawls websites to find broken links, redirects, and technical SEO issues.
Fast, asynchronous link checker written in Rust. It finds broken hyperlinks and email addresses and natively supports Markdown and HTML files. It is distributed as a single static binary and can output structured JSON for integration into CI/CD pipelines.
A site that shows realtime status of outages and problems with service providers. It covers categories such as phone and internet providers, video games, VoIP and messaging, online services, mobile apps, postal and delivery services, power utilities and online finance. Users can check outage reports, compare local activity and report a problem.
isUpMap is a service that provides a real-time heatmap displaying the operational status of over 90 popular internet services, indicating if each service is up, degraded or down. It tracks recent service incidents, offers customization options and desktop notifications for status changes, and works on both mobile and desktop devices, with an optimized experience for wider screens. The service also lists supporting sponsors and includes a search function to look up specific services.
Lychee is a fast, asynchronous, stream-based link checker written in Rust. It scans content including Markdown, HTML, reStructuredText, websites and other formats to identify broken URLs and invalid email addresses. The project is hosted as a public repository on GitHub, with documentation covering development, installation and supported platforms.