indexo.dev

thumbnailcheck.com

.com crawl

First seen 2026-04-13 · Last seen 2026-05-01 · ok HTTP/1.1 200 566 ms crawled 2026-05-06

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Thumbnail Check
Description
Check what your thumbnail will look like on YouTube desktop, mobile, and search
Language
en

Technology

CDN
Vercel
CMS
Next.js

Registration

Registrar
NameCheap, Inc.
Created
2023-04-27
Expires
2027-04-27 342 days left
Updated
2026-03-28
Name servers
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com

DNS records live

NS
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com
MX
  • 0 mail.thumbnailcheck.com
TXT
  • google-site-verification=t7xutwHLqNvBySlCNkMmzIuyuLzPvDusihatLYhOaiE

Email authentication partial

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-28 to 2026-07-27
Expires in 69 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://thumbnailcheck.com/

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

Links to (1)

Linked from (1)