indexo.dev

supermemo.com

.com crawl

First seen 2026-05-08 · Last seen 2026-05-08 · pending HTTP 403 crawled 2026-05-15

US · 104.21.91.156 · AS13335 Cloudflare, Inc.

Reputation 100/100

cloudflare bot challenge

Registration

Registrar
OVH sas
Created
1997-01-08
Expires
2027-01-07 232 days left
Updated
2026-03-17
Name servers
  • nitin.ns.cloudflare.com
  • olivia.ns.cloudflare.com

DNS records live

NS
  • nitin.ns.cloudflare.com
  • olivia.ns.cloudflare.com
MX
  • 10 aspmx.l.google.com
  • 20 alt1.aspmx.l.google.com
  • 20 alt2.aspmx.l.google.com
  • 30 aspmx2.googlemail.com
  • 30 aspmx3.googlemail.com
TXT
Show 5 TXT records
  • google-site-verification=04KHyjpdy_LZA6MWnfInySVw6JWXfq0krGmbDvIbruQ
  • google-site-verification=5JmrHwJXqfn0rOIVQ3o1lncckQuXeFVlhpEuMAMiSPc
  • google-site-verification=dmhFfyvNbTto80PBfff6forBEgDD3x63E7a7Y8Z7ZU4
  • google-site-verification=kLFm2BCgyCyWOjELfxo8woc9TE0e4nuWvH3fsPqrkks
  • smv=abav5p5d1j84gz37

Email authentication strong

SPF
v=spf1 mx include:_spf.google.com include:_spf.jupiter.salesmanago.pl ip4:46.28.10.160/27 ip4:31.220.146.96/28 -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc_info@supermemo.com; ruf=mailto:dmarc_info@supermemo.com; adkim=r; aspf=r;
policy: quarantine
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhjco+4iXbiTCzQxpdAIdc3uLTeAl/IOEUN+cQ4Nd9vX839ds0CrbcvgDd1H0UYG/PDBepdloOpWfpn…
selectors probed

Certificate (current)

E7
from 2026-05-15 to 2026-08-13
Expires in 86 days

Full certificate history on crt.sh ↗

Linked from (1)