User Agent Category: Link Checker
Link Checkers traverse hyperlinks and check for broken links or missing pages. Broken links are URLs you have to external unavailable pages in your pages. Missing pages are links you may have to other pages from your own site, which are no longer accessible. Most Link Validators will not visit and crawl your site, unless you specifically requested their services. Link Exchange crawlers make sure reciprocal links are present on the web site.
| Agent | Description |
|---|---|
| Adaxas | Website directory Adaxas link checking. |
| Argus | Simpy Bookmarklet crawler. |
| AutoHttp | Linkscan tool from Elsop. |
| BeamMachine | Web directory link checking. |
| BeebwareDirectory | Link checker for Beepware web directory. |
| Big Brother | Link checking tool. |
| Big Fish | GoonGee.com link popularity checking. |
| BookmarkTracker | Bookmark Tracker. |
| CheckBot | Checkbot checks links in a given set of pages on one or more servers. It reports links which returned an error code. |
| CheckLinks | Perl link checker. |
| CheckUrl | NTL user agent. |
| CheckWeb | |
| CJ Spider | Commision Junction link checking spider. |
| CoBITSProbe | Proposed Content-Based Image Tracking System (CoBITS) P2P crawler. |
| Complex Networks Group | UCLA Complex Networks Groups Complex Network Analysis. |
| Custo | Custo is a website spider and link checking. WebPix is a picture downloading tool. |
| CyberSpyder | Link Test software. |
| DeadLinkCheck | DLC Perl HTTP link checking. |
| Deep Link Calculator | Sootle Web Directory deep link checker. |
| DepSpid | Distributed web crawler for link dependencies. |
| FARK | Link checking. |
| FileBoost | Network link checking. |
| FlyIndex | FLY Index Metasearch link checking. |
| GeoURL | ICBM Address Server, a location-to-URL reverse directory. |
| GhostRouteHunter | |
| GoBeez | Starting page plugin. |
| gURLChecker | GNOME link checking tool. |
| Html Link Validator | Lithops Software link validation tool. |
| InfoLink | Link checking tool. |
| InternetLinkAgent | Link checking tool. |
| IP2MapBot | Reverse lookup geographical data and ISP by IP. Other IP2Map geographical IP mapping tools. |
| IrssiUrlLog | Perl url grabber. |
| JCheckLinks | Java hyperlink validator. |
| JordoMedia | RSS/Atom feed directory link checking. |
| KummHttp | Link or server checking from Sanoma Budapest. |
| LECodeChecker | Link exchange crawler. |
| Link Check | Perl HTML link checker, from Perl for Web Site Management. |
| Link Checker | |
| Link Valet | Online Link Checker. |
| Link Validity Check | Link Checker for the w3dir directory, a web design and development directory. |
| LinkAlarm | Link validation. |
| LinkBot | Link checking software (Linkbot). Or Rpsoft 2000 site crawler (linkbot). |
| LinkCheck | Link checking tool for Unix/Linux. |
| LinkGuard.com | Link validation. |
| LinkLint | Perl html link checker. |
| Linkman | Outertechs Linkman bookmark tool. |
| LinkPimpin | Link-Pimp web directory link checking. |
| LinkProver | TafWeb link checking program. |
| Links4US | ODP-based directory link checking. |
| LinkScan | Shareware robot from Elsop.com, used by Indiafocus/Indiainfo and others. LinkScan checks links, validates HTML and creates site maps. |
| LinksManager | Online link and bookmark checking service. |
| LinkSonar | Link checking tool. |
| LinkWalker | LinkWalker generates a database of links and sends reports of bad ones to webmasters. |
| ListBidBot | |
| Luchs.at | Linux Wiki link checking. |
| MiniRank | Website popularity tool. |
| Mojoo Robot | Link checker for the Mojoo human edited website directory. |
| MOSBookmarks | Joomla!/Mambo component and link checking. |
| Motoricerca | Robots.txt online checker. |
| NetCraft | Web server info. |
| NetMechanic | NetMechanic is a link validation and HTML validation robot, which runs using a web page interface. |
| NetPromoter | Link checking tool. |
| Nucleus | CMS SiteList link managing plugin. |
| Online Link Validator | Free Broken Link Checker. |
| Online24 | Shopping portal link checking. |
| Rank Exec | Reciprocal link checking. |
| RebusnetBot | Software site link/submission checking. |
| Reciprocal Link System PRO | Check reciprocal links to create a link directory. |
| Reciprocal Links Checker | Online reciprocal link checker. |
| RedBot | Search link checking. |
| RobTexBot | Multi-RBL check and AS number check. |
| S&L Spider | Search and Links (S&L) directory spider. |
| SharewarePlazaFileCheckBot | File and link checking. |
| Sleuth | Domain name tool. |
| SoftizerBot | Software directory link checking. |
| Stalker | |
| Superdownloads Spiderman | Ubbi link checking. |
| SyncIT | Link validation. |
| TricosMetaCheck | Meta tag validation. |
| TulipChain | Browser/link checker for Dmoz.org directory. |
| URLBlaze | File sharing link toolkit. |
| URLChecker | Directory link checking. |
| W3C Link Checker | Link checker, that reads an HTML or XHTML document and extracts a list of anchors and links. |
| W3CRobot | Link checking. |
| WAVcheck | Simple Vendor Discovery Tool for detecting client-side tags from web analytics vendors. |
| Web Link Validator | Link validation software. |
| Web-bekannt | Web directory link checking. |
| Web-Bot | |
| WebBug | Web server protocol test. |
| WebCapture | Web2PDF Adobe Acrobat plugin for site traversal and other services for the Web Capture feature. |
| WebLight | Web analyzer and link checker. |
| WebLink | Link management system for HTTP, FTP and Mail hyperlinks. |
| Webster | Webmaster Archive submission/pad checking. |
| WebTrends | Link analyzer. |
| WebVal | Python link checking tool. |
| Wir sind die Borg | Yammba web directory link checking. |
| WiseWire-Spider | Discontinued domain checker. |
| WISH | Academic research project for link checking. |
| Wusage | Log-file analysis. |
| WWSBOT | Web server version checker. |
