FRD Digital: Antispam for Chats

It used to be easy to spot a spammer by a link in the message. Now ads and scams hide in names, profile bios, linked channels and avatars. FRD Antispam is built for exactly that kind of spam 🛡️

It is a moderation bot for channels and groups that works around the clock. It checks not only the text of messages but also who is writing them.

What the bot looks at

Regular filters react to words and links. Spammers figured that out long ago and removed links from messages, moving the ad into the profile. FRD Antispam checks:

• Profiles and bios. Ads and suspicious calls to action in the name and the about section.
• Linked channels. Sometimes the whole lure sits in a channel listed in the profile.
• Avatars. The bot looks for explicit images and signs of bot accounts.
• Raids and floods. Sudden waves of identical messages in post comments.
• Prohibited topics. Scams, crypto, gambling and covert ads.

Why channel comments need protection

Spam shows up fastest under channel posts. A handful of bots is enough to turn a discussion into a dump of earning offers. Readers leave, and trust in the channel drops.

The bot catches such waves before they grow and takes some of the manual work off admins.

How to switch the protection on

1. Open the bot and press Start to see its features.
2. Add the bot to your group or channel.
3. Grant the admin rights needed to delete messages and ban offenders.
4. Test it with a spare account.
5. For the first days, watch what gets removed and adjust the settings.

What an admin should keep in mind

Any antispam can make mistakes. A real person sometimes writes words in a profile that look like advertising, and a filter may catch them. Check during the first week who exactly the bot removes, and add exceptions for your regulars.

Give the bot only the permissions it needs. Deleting messages and banning are enough, and everything else is optional.

A layer on top of built-in protection

Telegram itself gives admins of large groups a native antispam. It works on general signals and helps against mass waves. A dedicated bot is good at analyzing profiles more deeply than a standard filter does.

The best setup combines both: the built-in filter as a base and a specialized bot for hidden forms of advertising.

What hidden spam looks like

An account posts a harmless agreement or an emoji under a post. But open the profile and you find a promise of easy earnings with a link to a channel. The message is clean, and the whole ad sits in the bio.

These are the cases simple filters miss. That is why a living community needs to check the author, not only the words, especially when the chat has many newcomers.

If you run a small chat, remember: the sooner the first spammer is removed, the fewer follow.

Habits that keep spam out

• Turn on newcomer checks. A new member passes a simple test before writing.
• Limit links. Newcomers usually do not need them.
• Train your moderators. Let them know the signs of covert ads.
• Read member reports. People notice spam sooner than any filter.