headers?domain=example.com

Read allowlisted HTTPS response headers for a hostname (HSTS, CSP, server, CORS).

Read allowlisted HTTPS response headers for a hostname (HSTS, CSP, server, CORS). Use when you need live origin headers and must not guess. HEAD of https://{domain}/ on :443; GET if HEAD is 405/501. Redirects are not followed.

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.005 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x33236133…5d4b57d3

URL

https://api.fetchx402.com/v1/tools/headers?domain=example.com

Seen

first 34 days ago · last 19 days ago

45 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.3

UN
RATED

0.714 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.286: 0.086 uncertain ? + 0.200 short ? · 0.086 to B

How the composite of 0.714 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	0.857		0.514	0	−0.086
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.714	gap to 1.000 = 0.286 · 0.200 short · 0.086 uncertain	0.714	−0.200	−0.086

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 × 0.857   liveness       
+ 0.200 × 1.000   price stability
= 0.714           → UNRATED: 43 of 30 paid calls      weights 2026.09.3 · 43 samples · seed cap_01M1A59SQTWWPFB7A2GGMWZBMP|2026-08-23T00:22:49.006Z|2026.09.3

Verify it yourselfnpx teppi-check https://api.fetchx402.com/v1/tools/headers?domain=example.comcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59SQTWWPFB7A2GGMWZBMP