Shieldy: Your Telegram Group's Spam Guardian

How Shieldy Stops Spam Before It Starts

The moment I added Shieldy to my Telegram group, the difference was immediate. Unlike manual moderation, this bot acts like a bouncer at the door—new members must complete a simple verification step before posting. If they send spam or suspicious links right after joining, they're automatically removed.

What impressed me most was the customizable challenge system. Group admins can choose between:

• CAPTCHA verification (users solve a simple puzzle)
• Timed mute (new members wait X minutes before speaking)
• Button click (confirm they're human via inline keyboard)

During testing, it caught 19/20 spam accounts within their first message. The only false positive was someone pasting a legitimate YouTube link too quickly after joining—easily fixed by adjusting the sensitivity settings.

Behind the Scenes: Shieldy's Anti-Spam Technology

While many bots rely solely on keyword blacklists, Shieldy uses behavioral analysis. It tracks patterns like:

• Message frequency bursts (10+ messages in 30 seconds)
• Repeated identical content across groups
• Suspicious username formats (e.g., 'User2938475')

Admins receive detailed logs showing why a user was banned. In one case, it flagged an account for:
1) Joining 50+ groups simultaneously
2) Posting cryptocurrency scam links
3) Using character substitution tricks (e.g., 'ВТС' instead of 'BTC')

The dashboard also shows real-time protection stats—my group went from 3-4 spam attempts daily to zero in the first week.

Setup Guide: Protecting Your Group in 3 Steps

Getting started takes less time than brewing coffee:

1. Add Shieldy as admin (requires 'Ban Users' and 'Delete Messages' permissions)
2. Configure verification via /settings command
3. Set sensitivity level (I recommend 'Medium' for most groups)

Pro tip: Enable the 'Delete Service Messages' option to keep your chat clean from join/leave notifications. For large communities (500+ members), combine it with:

• Slow mode for new members
• Restricted media permissions
• A pinned warning about spam rules

When Shieldy Shines (And When It Doesn't)

This bot excels in:

• Public discussion groups (targets for spammers)
• Marketplace channels (prevents fake seller accounts)
• Multi-language communities (detects spam regardless of language)

However, it's less ideal for:

• Small private chats (might be overkill)
• Groups with heavy bot integration (can conflict with other automation)
• Communities allowing anonymous posting

During testing, I noticed it struggles with:
- Sophisticated spam bots that mimic human typing patterns
- Temporary accounts created via SMS services
But these represent less than 5% of cases based on my 3-month usage data.