indexo.dev

quarkchain.io

.io crawl

First seen 2026-04-14 · Last seen 2026-05-06 · ok HTTP/1.1 200 166 ms crawled 2026-05-08

US · 3.164.206.28 · AS16509 Amazon.com, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
QuarkChain

Technology

CDN
Amazon CloudFront
Server
AmazonS3

DNS records live

NS
  • ns-1135.awsdns-13.org
  • ns-1901.awsdns-45.co.uk
  • ns-289.awsdns-36.com
  • ns-522.awsdns-01.net
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication partial

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:qizhou@quarkchain.org
policy: none (monitoring only)
DKIM
  • google: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCZToBKQjt32aclsdYsj2wpp5BFxQJPmTa45KKt5ZgRIYSBKehLXpFhIAQKleRB6s1QJdvFM8urmFsGMmbaCO…
selectors probed

Certificate (current)

Amazon RSA 2048 M01
from 2026-04-22 to 2026-11-06
Expires in 170 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://quarkchain.io/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Linked from (1)