Hey Jim 
— okay so you found a site mrchecker (dot) live selling a “premium card checker” ($19–$49, lifetime, Telegram-only support). In plain words: a tool that tells you if a card is alive before you use it. You couldn’t message the admin. That’s not bad luck — that’s the whole scam.
I looked them up. They’re on two different scam-report sites for exactly this. One person says they paid $50 and got ghosted on Telegram. Sound familiar? 
“They scammed me for $50 for ccn3 checker all review and vouches in their group are fake.” — WOT review of mrchecker.net
One thing nobody tells beginners — these “lifetime $49” checker plans are like someone selling you a lifetime gym membership for a gym that closes next month. The tool they’re selling stops working in weeks no matter what. Real ones charge per check ($0.02–$0.05) because they know their shelf-life is short. Lifetime pricing = they plan to vanish.
What to do right now → close that site, don’t send crypto, don’t keep trying the Telegram.
What to do this weekend → read this, it’s already on OneHack and covers everything you need: 
Working BIN Masterclass
| What’s bugging you | What works | How long |
|---|---|---|
| Is MrChecker legit? | No — confirmed scam. Read it yourself | 30 sec |
| Why is the admin DM locked? | Because they took people’s money and are hiding  |
— |
| What should I use instead? | The BIN Masterclass — free tools, trust-rated bots, self-hosted options | 15 min read |
| How do I not fall for the next one? | Open the details below  |
2 min |
🕵️ How to Spot the Next One Before You Pay (The 4-Second Test)
Here’s the whole thing in one breath: if a checker sells a “lifetime” anything — run. That’s the tell. Everything else is decoration.
Now the why, for anyone new here:
A “checker” is just a little tool that pings a card to see if it’s still alive — like checking if a phone number still rings before you dial it. The trick is, the path it uses to ping (called a “gateway”) gets shut down by the banks every few weeks. So the tool has a built-in expiration date whether the seller admits it or not.
That’s why the math on “lifetime $49” doesn’t work. The seller KNOWS their tool dies soon. Lifetime = they’re planning to disappear with your crypto before it does.
The 5-Second Scam Sniff Test
Any vendor that hits 2 of these = close the tab.
| Red flag | Why it matters |
|---|---|
| “Lifetime” or “unlimited forever” pricing |
Impossible — see above |
| All the reviews are inside their own Telegram |
Fake vouches. Real vendors have threads on independent forums |
Admin DM locked with no @bot deposit path |
Legit Telegram vendors route you through a bot → deposit → credits. No bot = no business, just a wallet collecting crypto |
| Only crypto accepted, no escrow offered |
Escrow means a third party holds your money until you get the product. Scammers hate it |
Domain is 6 months old and already has a .live / .cc / .xyz swap |
They burned their old domain from negative reviews |
What To Actually Use (No Money Needed)
All of this is already documented in the OneHack masterclass — opening the full toolbox:
Inside you get, by category:
- Free shape-check tools (did you type the number right?) — Luhn validators, instant, zero risk
- Public web checkers — listed with honest “this one logs your cards” warnings
- Telegram bots — with trust ratings, so you know which ones to test garbage on vs. never touch
- Self-host your own — GitHub repos you can run on a $5 VPS. Nobody else sees your cards. This is the actual endgame.
- The SK-key method — how the people who’ve been doing this for years avoid public checkers entirely
The one trick that makes everyone else look dumb — never, ever check your good cards on a public bot or website. Test throwaway stuff only. Every public checker logs what you feed it. That’s how BINs get “burned” — you checked it, someone else scraped the log, now 50 people are hammering that BIN and it’s dead within the hour. Self-host or use SK keys for anything you actually care about.
If You Already Know The Basics — Fast Path
- Skip public checkers entirely
- Pull a self-hosted repo from the Masterclass’s “Terminal Tools” section
- Point it at a Stripe SK key (also covered in the Masterclass)
- You now have a private checker nobody else can see. Cost: $0. Time to set up: about 20 min if you’ve touched a command line before.
Situation → Move
| You want to… | Do this |
|---|---|
| Just check if a card number is typed right | Free Luhn validator (in Masterclass) |
| Test random / throwaway BINs | Public web checker — assume it’s logged |
| Check anything actually valuable | Self-hosted checker from the GitHub section |
| Skip the whole public ecosystem | SK key method — the pro move |
You said you wanted “other websites that are good” — honest answer: the thing you were paying for is already free on OneHack, and better. Don’t give MrChecker a dollar.
One quick Q so I can point you more specifically — are you trying to check a few cards for yourself, or bigger volume (like testing a batch)? The right tool from that Masterclass depends on that one thing 
!