How to prevent spam reviews

Can think of:

1. Sensitive word filtering
2. Same IP limit comment frequency

What else are you used to?

Reply content:

Can think of:

1. Sensitive word filtering
2. Same IP limit comment frequency

What else are you used to?

Use of third-party anti-spam systems

The hacker and the painter mentioned the anti-Spam algorithm: Bayesian algorithm. Many anti-spam systems are used, so you can try a third-party spam review system, more famous Akismet.

Akismet by WordPress founder Matt Mullenweg developed, if your blog using WordPress built, then already have this feature.

Akismet has a powerful automatic learning function, which is much more powerful than a simple set of several sensitive words.

If not, it doesn't matter. Akismet provides a very powerful API, and most systems such as CI, ZF have related modules and plugins.

In addition, if the main deal with the robot, Nospamnx can also try.

Verification Code

Spam reviews 90% or more are generated by robots, so using a verification code can filter out most of the spam reviews.

Exception IP Authentication Code
Review review

1. Sensitive Word sub-filter
2. real name
3. IP authentication
4. Comment Rating

Manual review, Pro.

IP, name, time, frequency

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