Everyone loves tools, right? This week, optimize your site with…
A. Desktop Tools
Xenu’s Link Sleuth
Spiders your site and helps identify broken links and redirects.
Screaming Frog SEO Spider
Like Xenu, Screaming Frog spiders your site for SEO elements and errors.
LinkExaminer
Yet another spider.
B. Online Tools
Yahoo Site Explorer
A classic tool, though rumor has it it wont be around much longer. Helps review/analyze list of cashed pages and inbound links.
OpenSiteExplorer
Helps determine the popularity of a link, and does backlink analysis.
LinkDiagnosis
Analyzes your link profile.
Webconfs HTTP/HTTPS Header Check
Allows you to inspect the HTTP/HTTPS headers of a page. Useful to seeing server responses and what not.
Webconfs Similar Page Checker
Helps identify duplicate content and establish uniqueness of text.
Webconfs Domain Stats Tool
Provides some domain related statistics.
SEO Browser
Gives you a preview of how search engine spiders see your site.
WHOIS Lookup Tool
Tells you WHOIS information such as domain age
Google Webmaster Tools
Gives you a plethora of data about your site, including inlinks and more.
Bing Webmaster Tools
Shows similar stats to Google Webmaster Tools (crawling, links, etc)
C. Firefox Add-Ons
User Agent Switcher
Allows you to emulate different user agents (search engine spiders, mobile devices, etc) in order to discover stuff like cloaking.
SEO for Firefox
Provides an SEO snapshot of the page via the SEO XRay Tool, quick site/page information in Lookup, and more.
Allows you to inspect and edit HTML code. You need this.
FoxyProxy
Helps review websites with IP based content serving (multi-language sites, etc)
Live HTTP Header
Allows you to capture and analyze server header responses. Very useful for both analytics and SEO.
YSlow
Lets you analyze the size of on page elements (images, CSS code, text/html, etc)
GoogleGlobal
Lets you preview what Google search results are like in different geographical locations.
SEO Quake
Shows a bunch of website related stats.