Hello there, it’s been a while for me since the last time I experimented with IPFS.
Nonetheless, I’ve recently been introduced to the concept of IPNI nodes, that serves as a network index to speed-up dial-up and retrieval of data.
To my knowledge, the only known public indexer is https://cid.contact but otherwise anyone could run its own indexer nodes (using the reference implementation storetheindex).
To announce their services, IPFS nodes (actually index providers) should announce what they provide either using an HTTP endpoint directly on the index node `PUT /announce` or using the following PubSub topic: /indexer/ingest/mainnet.
In my experience, pubsub is a bit of a hit or miss situation. Either you are already connected to a node that is part of the “topic members”, and it works flawlessly, or otherwise it does not work. Anyway, I’m currently unable to use reliably the pubsub topic to discover providers. So I’m looking back to the first way.
Is there, today, any kind of “public indexer list“ like Public Gateway Checker | IPFS where you could advertise your own indexer? Otherwise, maybe some rendez-vous point exists to “join“ the /indexer/ingest/mainnet nodes?