ConfirmTX accelerator review: what we found in 2026

Search for a Bitcoin accelerator and ConfirmTX appears in most of the top ten lists, usually with the same three facts: free for transactions under 250 bytes, five dollars flat above that, and confirmation within twelve hours. Three impressions for confirmtx accelerator reached this site last month with no page to land on, so we went and looked. This is what we found, in the order we found it.

The site on 10 October 2026

We requested confirmtx.net four times across the day, with the same browser identification an ordinary visitor would send, waiting twenty seconds between attempts and more between batches.

A 522 is specific. It is not a 404, which would mean the page moved, and not a 403, which would mean we were blocked. It means Cloudflare still answers for the domain and the server it forwards to has stopped. A site can show this for an hour during maintenance. It can also show it for years after an operator walks away, because the Cloudflare proxy keeps answering long after the server behind it is switched off.

We cannot tell you which this is from one day. We can tell you what the other evidence says.

What the people who paid said

Trustpilot's page for confirmtx.net has three reviews, every one of them one star, and no reviews in the last twelve months. Above them is a notice: it is no longer possible to leave a review because the company's website has closed. The reviews themselves are from 2023.

• June 2023. A $17 payment to accelerate a transaction. Twenty days later the transaction was still unconfirmed.
• September 2023. $17 sent for a promised confirmation within 24 hours, then a request for more money because the transaction was larger, then no response to a refund request.
• September 2023. Paid three days earlier, transaction still stuck.

Two details in those reviews do not match the listicle description. The price people report paying is $17, not $5, and the promise they report is 24 hours, not 12. Either the terms changed over time or the quoted terms were never the real ones. Either way, the pages ranking for this name in 2026 are describing a price list that the service's own customers did not see in 2023.

The advertised terms, priced against reality

Suppose the service were up and the listicle terms were accurate. Free under 250 bytes, $5 flat above. What would that buy?

A normal single input, two output transaction is about 140 virtual bytes. So the typical stuck transaction would fall in the free tier, and the free tier of a service like this is a rebroadcast, which does nothing for a transaction the network already holds. Every node that has your transaction ignores a second copy. That is not an opinion about ConfirmTX; it is how Bitcoin nodes work, and it is why rebroadcast accelerators do nothing for a propagated transaction.

Above 250 bytes, $5 is about 6,000 sats at the price on the day this was written. The transaction it would be bought for, if it is like most stuck transactions, pays about 0.15 sat/vB and needs lifting to around 1 sat/vB. For a 300 byte transaction that is roughly 255 sats. The flat fee is about twenty four times the real shortfall, and unlike a fee bump it goes to the service, not to a miner, so the transaction's fee rate does not rise by a single satoshi.

Against our six red flags

We keep a list of six signs that separate a working accelerator from an advance fee pattern. Run ConfirmTX against it using only the public record.

Four flags out of six from the public record alone, before the server went quiet. For contrast, the mempool.space Accelerator names fifteen pools, publishes every job it takes and shows its price before payment, and ViaBTC at least runs the pool it promises to use.

If you already paid ConfirmTX

1. Assume the payment is gone. Accelerator payments are made in crypto to an address the service controls. There is no chargeback. A refund request to a server that returns 522 will not be read.
2. Check whether the transaction confirmed anyway. Many do, by chance, within a day or two of a panic payment, which is how services like this collect good reviews. Look it up on any explorer.
3. If it is still pending, bump it. You sent it: RBF from your wallet. You received it: CPFP from yours. The cost is the shortfall, which the checker shows in sats.
4. If it is not found anywhere, it was dropped or never broadcast. Push the raw hex back to the network, free, or send a new payment at a clearing rate.
5. If you cannot bump and it cannot wait, use a service you can verify, and read its refund rule before paying a second time.

Why it is still in the listicles

Because the listicles are not maintained. AMBCrypto's list was refreshed in May 2025 and still carries the 250 byte and $5 terms. A 2026 press release on a wire service promotes the name in the present tense. Mudrex's list dates from 2021. None of them say when the author last opened the site. We rank the same category by whether each service answers today, and on 10 October 2026 this one did not. The full status table is in our ranked answer to which accelerator is best, alongside the 360 Bitcoin Accelerator, whose free tool is switched off, and BTC.com, Poolin and F2Pool, which are gone outright.

We will keep checking

A single day of 522s is strong evidence, not proof of permanent closure. We re-check every accelerator in our comparison periodically and update the status tables when something changes. If confirmtx.net comes back, this page will say so, with the date, and we will price its real terms the same way we price everyone else's. Until then, a service that cannot be reached cannot be recommended, whatever position it holds in a list written years ago.

The bottom line

ConfirmTX, on the day we looked, was a Cloudflare error page with a Trustpilot obituary behind it. Its advertised fee was a multiple of the real cost of fixing a stuck transaction even when it worked, and its customers reported paying more than the advertised fee for nothing. The listicles will keep ranking it until someone opens the site. Open the site. Then bump the fee yourself.