raw.dnsp.co

Your request handed back to you as hex.

What it does

A TXT query to raw.dnsp.co returns the bytes of the request exactly as they arrived. Decode it and compare against what you believe you sent: flags, the name itself and the EDNS section are all visible.

Example

$ dig @dnsp.co raw.dnsp.co TXT +short

"a1b20100000100000000000103726177..."

Reading the answer

bytes matching what you sent

Your query arrived intact.

a different name or flags

Your query was rebuilt by a resolver or middlebox before it reached us.

an added EDNS section

Something upgraded your query on the way, usually a recursive resolver.

Notes

Aim it at us directly if you want to see your own packet rather than your resolver's.
Pair it with 0x20 and min, which read the same bytes for you.