How Did Comment-Spammers Find My Blog?

Did you ever wonder how comment spammers discovered your blog?

Crawling the Web

One possibility is that the spammer sent out a bot to crawl the web from blog to blog. This requires some infrastructure, and is becoming less effective as more bloggers use some kind of comment spam protection mechanism.

Searching Google

It then becomes more effective for the spammer to simply use Google,
searching for all the pages with the phrase post a comment, but without the terms sign in, register, log in, etc.

And as an additional benefit, blogs come already sorted by “importance” in the seach results.

Extending the query to restrict results to blogs not using Captchas is left as an exercise to the reader.

What This Means to You

Avoid standard phrases like post a comment on your blog. More creative phrases like Reply to this Post, share your views or letters to the editor may be safer.

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