The forum software is xenforo, robots.txt has one of the line as Disallow: /forums/-/ Is it the correct one? Does it effect google rank or crawling? Thank you.
It will disallow all robots from accessing /forums/-/ and /forums/* I'm not 100% great with robots.txt, but I believe it will stop all robots from accessing any URL with /forums/ (so /forums/*) Example: User-Agent: * Disallow: Disallow: /forums/-/ Code (markup): Another: User-Agent: * Disallow: Disallow: /forums/ Code (markup): To allow: User-Agent: * Disallow: Allow: /forums/ Code (markup): In these sorts of things an * represents a wildcard. And User-Agent has the types of robots such as User-Agent: Googlebot and User-Agent: bingbot
In case it helps, you can use: http://robots-txt-parser.stapps.io/ to test robots.txt rules with example urls