indexo.dev

fengliang.io

.io crawl

First seen 2026-04-30 · Last seen 2026-05-19 · ok HTTP/1.1 200 835 ms crawled 2026-05-08

US · 76.76.21.98 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
fengliang.io

Technology

CDN
Vercel

DNS records live

NS
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com
MX
  • 10 mx1.privateemail.com
  • 10 mx2.privateemail.com

Email authentication weak

SPF
v=spf1 include:spf.privateemail.com ~all
softfail (~all)
DMARC
not published
DKIM
  • default: v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA27JxGznEeBI1miNQ6m6afogVyaOYYtZnZdWTBJ2d5MFHd+XqCSTRM/yZRqQD11z5022DGBpxIdqgpfFP…
selectors probed

Certificate (current)

R13
from 2026-04-11 to 2026-07-10
Expires in 51 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.fengliang.io/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000

Linked from (1)