Filter for blog comments spam?

[Byron]

Hey,

I've built a site that accepts visitor comments, but most of what I get
from the form is automated spam from China. Anywhere from 80-100 spam
comments every few days, a lot of it repetitive.

I'd welcome ideas to filter this out. Filtering by character type (no
Chinese characters?) would help a lot, but a growing segment of it is in
English.

I don't really want to require logins to post messages. I guess I could
use a buffer page that requires the user to type in a random displayed
code to gain access. Is that the best option?

I'd be happy to hear your experiences with this.

Thanks.

 

[Roland Hall]

in message
: I've built a site that accepts visitor comments, but most of what I get
: from the form is automated spam from China. Anywhere from 80-100 spam
: comments every few days, a lot of it repetitive.
:
: I'd welcome ideas to filter this out. Filtering by character type (no
: Chinese characters?) would help a lot, but a growing segment of it is in
: English.
:
: I don't really want to require logins to post messages. I guess I could
: use a buffer page that requires the user to type in a random displayed
: code to gain access. Is that the best option?

Not sure if it's the best but it cuts down on the spam. You could always
block China with IPSEC.

: I'd be happy to hear your experiences with this.

I require a logon to post.

--
Roland Hall
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