Hello friends!
The problem of spam comments was mentioned in the tutorial on how to block spam comments with the Akismet plugin . However, it is possible that many people for some reason do not want to use this plugin such as not being able to register Akismet or feel it is not effective. In this article, I will introduce ways to limit spam comments without using a plugin or you can combine this method with the Akismet plugin to increase efficiency.
Limit Spam Comments in WordPress
To set up features to limit spam comments, go to the Settings > Discussion menu . Then you set the following customizations:
1. Click the Author of the response must provide a name and email to prevent manual spam. Usually this feature does not block comments from bot-spam, because they are set to fill out comments.
2. Usually spam comments will appear less in new posts than in old posts. Therefore if there is no need to collect comments on old posts. It is best to turn them off, by ticking the feature ” Automatically turn off comments” if there are old posts and enter the comment closing time after how many days.
3. You should leave all Comments pending moderation. Because this will limit spam comments as well as negative comments that are very dangerous to the outside.
4. You can instantly browse comments from responders who already have an accepted response. The majority of those who have been approved for comment are helpful and factual. So you don’t need to review again.

Manage comment review
According to statistics, most spam comments from bot-spam always contain at least 1 link. You should therefore keep all comments linked back for review. In addition, you can include comments from spam IP addresses. Comments containing inappropriate words by filling them in the box below. One content per line.

Just like above with the Blacklist feature , comments with IP addresses or words on this list will be immediately trashed.

summary
Above is how to set up the comment function in wordpress to limit spam comments. However, when your website has a large number of comments, it is necessary to manage comments more closely. Therefore, I recommend that you combine using the Akismet plugin to block spam more effectively.

