http://www.webconfs.com/backlink-builder.php

http://www.webconfs.com/domain-age.php

http://centralops.net/co/DomainDossier.aspx

http://www.linkvendor.com/seo-tools/domain-popularity.html

http://www.webconfs.com/domain-stats.php

http://www.webconfs.com/http-header-check.php

http://www.seoegghead.com/tools/view-http-headers.php

http://www.seoegghead.com/tools/view-http-path.php

http://www.linkvendor.com/seo-tools/multi-pagerank.html

http://www.iotaweb.org/

https://adwords.google.com/select/KeywordToolExternal

http://www.nichebot.com/ranking/

http://www.linkvendor.com/seo-tools/pagerank-check.html

http://www.pageranktool.net/

http://www.linkvendor.com/seo-tools/visualpagerank.html

http://www.linkvendor.com/seo-tools/keyword-density.html

http://www.seochat.com/seo-tools/keyword-density/

http://www.webconfs.com/keyword-density-checker.php

http://www.seomoz.org/tools/kwtool.php

http://www.selfseo.com/keyword_suggestion_tool.php

http://www.webconfs.com/website-keyword-suggestions.php

http://www.gorank.com/seotools/ontology/

http://www.webuildpages.com/seo-tools/index.php

http://www.webmaster-toolkit.com/link-popularity-checker.shtml

http://www.dead-links.com/

http://www.webconfs.com/link-value.php

http://www.linkvendor.com/seo-tools/linkvalue.html

http://www.webconfs.com/reciprocal-link-checker.php

http://www.seochat.com/seo-tools/site-link-analyzer/

http://www.linkvendor.com/seo-tools/outbound-links.html

http://www.webmaster-toolkit.com/meta-tag-generator.shtml

http://www.searchbliss.com/free_scripts_metatag.htm

http://www.copyscape.com/

http://www.linkvendor.com/seo-tools/site-analysis.html

http://www.xml-sitemaps.com/

http://www.webconfs.com/similar-page-checker.php

http://www.linkvendor.com/seo-tools/speedtester.html

http://www.webmaster-toolkit.com/mod_rewrite-rewriterule-generator.shtml

http://www.linkvendor.com/seo-tools/url-rewrite.html

http://www.webconfs.com/url-rewriting-tool.php

http://www.linkvendor.com/seo-tools/cloaking-detector.html

http://www.seoegghead.com/tools/what-is-hosted-on-that-ip.php

http://seobench.com/google-yahoo-graph/

http://www.webmaster-toolkit.com/search-engine-position-checker.shtml

http://www.linkvendor.com/seo-tools/se-spider.html

http://www.marketleap.com/verify/default.htm

http://www.selfseo.com/search_engines_index_report.php

http://www.top25web.com/cgi-bin/report.cgi

http://www.linkvendor.com/seo-tools/serps-position.html

http://www.seotoolset.com/tools/free_tools.html

http://www.webuildpages.com/cool-seo-tool/

http://www.sxw.org.uk/computing/robots/check.html