A spike in spammy backlinks - what to do?

[davidbrownlh]

I have recently noticed a huge rise in the number of backlinks to my site, but they're coming from websites like:

Domains - Links...

<snipped list of 13 obviously crappy domains, showing
anywhere from 43 to 290 links each to poster's site.>

If I try to open these websites in my browser, most of them throw a 404 not found error, but from the stored previews in the Google Webmaster Console, they seem to be spammy/p0rn sites.

So far, my rankings haven't been hurt by these links, and none of the pages my site has been linked from seem to open in the browser anymore...but I don't want to just wait to see if I will be hit by a penalty from the big G.

So what do you think, should I disavow these domains preemptively?

--
Mod's note: Per Google SEO News Forum Charter [webmasterworld.com...] we don't out other sites. This is for the protection of all members here.

[edited by: Robert_Charlton at 6:13 am (utc) on Mar 13, 2016]
[edit reason] Removed list of linking domains [/edit]

[Wilburforce]

So what do you think, should I disavow these domains preemptively?

If they are ephemeral there probably isn't much point, especially as it hasn't yet (and probably won't) affect your rankings.

If they form part of some as yet ineffective negative SEO attack (are they using highly-targeted anchor-text?) it might be worth doing some forensic work to see if you can identify the perpetrators(s), in case they later come up with something that works.

However, crappy backlinks are an everyday phenomenon if your site is successful, so don't waste too much effort jumping at shadows.

[JS_Harris]

I wouldn't even recommend bothering to visit these sites.

[tangor]

Chuckles. These days I look at join date and message count before answering some of these things. :)