indexo.dev

lectureinprogress.com

.com crawl

First seen 2026-05-04 · Last seen 2026-05-04 · pending HTTP 521 crawled 2026-05-17 2 attempts

US · 104.21.2.96 · AS13335 Cloudflare, Inc.

Reputation 100/100

http 521

Registration

Registrar
Register SPA
Created
2010-06-27
Expires
2026-06-27 38 days left
Updated
2024-06-27
Name servers
  • fiona.ns.cloudflare.com
  • frank.ns.cloudflare.com

DNS records live

NS
  • fiona.ns.cloudflare.com
  • frank.ns.cloudflare.com
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
TXT
  • google-site-verification=Tg_OqP7gOYX-diSq_95Z_7eONzbUj5_ZLP4mO4vYX8A

Email authentication strong

SPF
v=spf1 include:_spf.google.com v=spf1 include:servers.mcsv.net v=spf1 a mx include:spf.mtasv.net ~all
softfail (~all)
DMARC
v=DMARC1; p=reject; pct=100; adkim=s; aspf=s
policy: reject (enforced)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx6rwB/qWBkZ6pxHQy61qbQX2EUaXQKspKLkEj0nuV2HSXuYrvMik6fQ1onz8/QkGPq7GT/JNIB32nZ…
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
selectors probed

Certificate (current)

E8
from 2026-04-12 to 2026-07-11
Expires in 53 days

Full certificate history on crt.sh ↗

Linked from (1)