User Agent Category: Tools
Various webmaster online or standalone tools, that leave a signature in User Agent strings. This includes code validators, bookmark managers, site monitors and Content Management Systems or HTML Editors.
| Category | Description |
|---|---|
| Code Validator | Code Validators are online tools or local applications that validate HTML, CSS, XML, RSS, XSL format of web pages, as well as syntax of hyperlinks or the overall site structure. Based on a set of standard rules, they determine if your pages obbey W3C regulations. Link Validators will make sure your URLs have a correct format. Most Validators will not visit your site, unless you specifically required their service. |
| Bookmark Manager | Bookmark managers are either browser plugins that manage your Favorite links and Fav icons, or Social Network applications for shared online bookmarks. Users store lists of Internet resources, which they find useful. The lists are either private, or become accessible to the public or a specific network, and other people with similar interests can view the links by category, tags, or randomly. Their crawlers may spider your site, looking for interesting pages they can bookmark and share with their users. |
| Monitor | Server Monitors or HTTP Site Monitors will visit your website (usually just your home page) at fixed intervals of time - usually every 5, 15, 30 or 60 minutes - to determine if your hosting server and site are up, and to measure the response time. Monitors can be online subscription-based services or standalone applications you installed on your computer or local network. It's rare a server monitor will visit your site, unless you subscribed to its service or started the local application. |
| Content Manager | Content Management Systems, Web Editing and Publishing tools, HTML Editors. |
