I think mempool.space has an "accelerator"
There's also VIA BTC that do this too.
Maybe you should warn everyone on the one you used.
It was some called bittools.net
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ViaBTC only has 100 free transaction requests that refresh exactly every hour, but they are used up so fast by bots (and ironically for low-paying Ordinals transactions nowadays) that there is almost no chance of filling a successful request in time.
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Interesting
I haven't used it since 2017.
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