https://www.adultsitesmenu.com/add-adult-site/
Page for adding adult site, new link or URL to the directory. Reciprocal link is required. If you put recip link on your homepage, you get advantage. Add adult...
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https://moz.com/community/q/topic/55721/new-site-redesign-launched-without-301-redirects-to-new-pages-too-late-to-add-redirects/2
Personally I'd start with a link analysis to answer the question, "Are they stronger than you?" You'll want to look at their sheer volume as well as the...
new siteredesignlaunchedwithoutredirects