Endpoint · lookupPOSTdmarc-lookup.underscoredone.com/dmarc-lookup

Give this tool a list of domain names and it will instantly check each one's DMARC email security record.

Give this tool a list of domain names and it will instantly check each one's DMARC email security record. DMARC is a standard that tells email providers how to handle fake or spoofed emails pretending to come from your domain. For each domain you submit, you get back whether a valid record exists, what the policy is (none, quarantine, or reject), whether reporting addresses are set up, and the full raw record text. Perfect for auditing many domains at once without any setup.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.01 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0xe9740820…0e2c2f08

URL

https://dmarc-lookup.underscoredone.com/dmarc-lookup

Seen

first 34 days ago · last 11 hr ago

64 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.734 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.266: 0.066 uncertain ? + 0.200 short ? · 0.066 to B

How the composite of 0.734 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
latency p95costs the most it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
liveness it answered at all	0.60	1.00	0.890		0.534	0	−0.066
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.734	gap to 1.000 = 0.266 · 0.200 short · 0.066 uncertain	0.734	−0.200	−0.066

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.200 × 0.000   latency p95    
+ 0.600 × 0.890   liveness       
+ 0.200 × 1.000   price stability
= 0.734           → UNRATED: 56 of 30 paid calls      weights 2026.09.6 · 56 samples · seed cap_01M1A51R58RFSSM8Z05WBWBPRE|2026-09-03T15:26:20.183Z|2026.09.6

Verify it yourselfnpx teppi-check https://dmarc-lookup.underscoredone.com/dmarc-lookupcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A51R58RFSSM8Z05WBWBPRE