« Bull Jumpers! | Main | In Memoriam: the Crew of Apollo 1 »

Spam, CAPTCHA, Gotcha!

I've made a small change to the blog recently that should make it a little easier to comment on a post. Previously, to cut down on spam comments (we were getting a lot), I had comment moderation turned on. This meant your comment wouldn't be posted until Lisa or I approved it (unless you logged in using a TypeKey account, in which case your comment would be posted immediately). I was never that satisfied with this approach, since most people don't want to be bothered with getting a TypeKey account, and nobody's crazy about their comments sitting in limbo until Lisa or I get around to approving them.

Now I'm trying a different approach: I've implemented a CAPTCHA test (a "Completely Automated Public Turing test to tell Computers and Humans Apart") on the comment submission form. All you have to do is enter the Security Code that's displayed in the image at the bottom of the comment form, and your comment will be posted immediately. I've tested it, and it works. The best part is that since implementing this feature, we have gotten precisely zero spam in the comboxes (low, rumbling sound as Don tempts fate...)

Please give it a try.

Comments

See, wasn't that easy?

Your captchas are much easier to read than some. However, I kept running in this error:


Comment Submission Error

Your comment submission failed for the following reasons:

Too many comments have been submitted from you in a short period of time. Please try again in a short while.

If this error doesn't apply, you probably mistyped the Security Code before posting your comment. Please use your browser's "Back" button and retype the Security Code.

This would happen even with hours between attempts. No, I did not type the captcha incorrectly.

Sean,

I looked in the access, error, and script_error logs for the web server and couldn't find a smoking gun. Was anything different the time it did work from the other times?

Post a comment

Please type the words below (or refresh to get a new challenge)

Copyright © 2005-2010
Donald W. Roberts
Don Roberts Consulting
All rights reserved.