Different sources run in various global regions, and based on that MD should have a pretty good global picture of the mempool at any time.
The main MD collector service runs in Scandinavia, which can affect the recorded latencies.
Bloxroute provides MD with a free subscription to the highest plan with best performance.
What does this dataSize mean? Is that a size in bytes I think?
Yes, it’s the number of bytes: mempool-dumpster/common/txsfile.go at 7dd7061fc3f2a4128abe7fd0d1d88d56186be9e5 · flashbots/mempool-dumpster · GitHub
any plans to support other chains besides mainnet? E.g. testnents like holesky and sepolia
Are there also any plans to support dencun blobs sometime soonish?
Blob transactions are already part of the archive. And there’s no current plans to support testnets at the moment.