Anti TCN Link Bot for groups

It is a familiar scene: an unknown account joins your group, drops a short link with an invitation to "take a look" and vanishes. The link leads somewhere unclear, and the chat is left with junk. Anti TCN Link Bot exists against exactly that kind of spam. 🧹

The bot's profile states one job: delete spam made of links from a Chinese link shortening service in groups. The bot's name is built on that service's short address.

Why these links in particular

Link shorteners hide the real address. From a short link you cannot tell where you will land: a shop, a phishing page, or an ad for a questionable channel. Spammers like this, because word filters do not notice such a link.

The bot cuts off one specific source. It does not try to analyze every message. It reacts to links from the chosen shortener and removes them.

• Target: spam made of links from one shortening service.
• Where it works: in groups it has been added to.
• What it does: deletes messages containing such links.

Setup in a minute

You need to be a group administrator. The bot will not act until it has the right to delete other people's messages.

1. Find the bot in Telegram search.
2. Add it to your group.
3. Make it an administrator with the right to delete messages.
4. Ask a friend to post a test link and check that the message disappears.

Do not hand over more permissions. This job needs a single right, and every extra one only adds risk. 🔒

When it is enough and when it is not

If your chat gets the same stream of spam with short links, the bot solves the problem quickly and with no setup. It is a narrow tool, and that is its convenience: it will not delete something useful by mistake, because it looks for nothing else.

If the spam varies, you need more. Spammers switch shorteners, use links to other domains and forward posts from channels. For that you want bots with captcha, word filters and checks for newcomers.

Look at what actually lands in your group. If the links come from one service, a narrow bot is fine. If everything differs, choose broader protection. 🛡️

What to know about short links

Even if you are not an administrator, three habits help.

• Do not open unfamiliar shortened links. Until you know where they lead, there is risk.
• Do not enter data. If a page asks you to log in or type a code, close it.
• Tell the admin. By reporting a spammer you help get them removed sooner.

A group admin can pin a rule that short links are allowed only for trusted members. That lowers the noise, and the bot stays as a backup filter.

What to check before adding it

The bot is small, there is no detailed documentation, and the profile lists a single command: /start. So test it in a spare group first. If it behaves oddly or does not delete messages, remove it from the administrators.

Remember that any bot with the right to delete can see the messages in the group. Add only bots whose purpose is clear from the profile, as it is here. 👀