Priority fee history
No free service keeps a history of Solana priority fees, so this one is our own: every five minutes the 150-slot levels are sampled and stored. The record starts on the day sampling began; nothing earlier is filled in.
Fee history: no data yet. The page shows nothing rather than a guess.
FAQ
How is the history measured?
Every five minutes the levels of the last 150 slots (getRecentPrioritizationFees) are stored: min, p25, p50, p75 and p90 of the lowest landed fee per slot.
Why are there gaps?
When a sample could not be taken, the line is broken there. Nothing is interpolated across the hole.