Yes, the mining is real.
No, it will never earn you Bitcoin.
You asked: “Can a website mine Bitcoin through an upgraded server — even slowly, as long as it’s real?” The hashing below is the exact math real miners perform (double SHA-256 over a block header). But the numbers make earnings physically impossible — and this page proves it to you, live, instead of pretending otherwise.
Live Bitcoin Network
Pulled from public network data · refreshes every 5 minutes
Your Mining Rig (a.k.a. this browser tab)
Genuine double SHA-256 via the Web Crypto API in a Web Worker. Practice difficulty is lowered so you can actually find “shares”.
Controls
Telemetry
Reality Check (live math)
Formula: hashrate × seconds ÷ (difficulty × 2³²) × 3.125 BTC × price. Same math every mining pool uses.
Shares Found — real proofs-of-work at your practice difficulty
Global Leaderboard
Best (lowest) hashes found by visitors. Every entry is re-verified server-side — you can’t fake a proof-of-work.
| # | Miner | Hash | Bits | When |
|---|
The Honest Answer to Your Question
Can a website really mine Bitcoin?
Technically yes — economically no. Mining is just computing SHA-256(SHA-256(block header)) trillions of times hoping for a tiny result. Any computer can do it, including this page (which is doing it right now if you pressed start). “Real” isn’t the problem. Rate is the problem.
What about an upgraded server? Even earning slowly?
A powerful server CPU manages roughly 20–50 MH/s. The Bitcoin network runs around 600 EH/s — 600,000,000,000,000,000,000 H/s. Your server’s share would be about 1 part in 10 trillion. Expected time to find one block solo: millions of years. Expected income: fractions of a cent per year — while the server’s electricity costs hundreds of dollars. It doesn’t earn “slowly”; it earns negatively.
Why is the network so absurdly fast?
Real miners use ASICs — chips that do nothing except SHA-256. One modern ASIC does ~200 TH/s, roughly 10 million times faster than a server CPU, and warehouses run tens of thousands of them next to cheap power. General-purpose CPUs (and browsers) simply cannot compete, by design — that’s what makes Bitcoin secure.
Could the website use visitors’ browsers to mine?
That’s called cryptojacking when done secretly, and it’s both unethical and pointless for Bitcoin: even a million browser tabs (~1 THash/s combined) would be a 0.0000002% network share. Sites that tried this (with Monero, a CPU-friendlier coin) earned pennies and got blocked by every browser and antivirus. This page hashes openly, with your consent, for learning — and submits nothing but your practice shares.
So what IS real on this page?
Everything except the payout. The hashing algorithm, the proof-of-work concept, the difficulty targets, the hashrate math, and the live network stats are all genuine. If you scaled your slider from 28 bits to Bitcoin’s ~76 bits, you’d be doing exactly what a mining farm does. The only honest thing missing is the reward — and now you know precisely why.
If I actually wanted to earn Bitcoin, what works?
Realistically: buying it on a regulated exchange, earning it as payment for work, or (if you love the tech) buying an ASIC and joining a mining pool where hardware + electricity costs beat your local power price. Web servers and browsers are not on that list — and anyone selling you “website mining profits” is selling a scam.