10IPS
My internet
My site
Tools
Site & domain
Full site scan
SSL / TLS
DNS
HTTP headers
Redirects
WHOIS
Network & access
Service status
Blocked in Russia
Port checker
Ping
Traceroute
Speed test
Privacy & email
VPN check
DNS leak test
WebRTC leak
Mail checker
SPF / DMARC
IP / ASN
All tools →
Monitoring
API
EN
RU
Cabinet
Enter to go · Esc to close
/
Site check
/
certum.pl
/
DNS
Passport
TLS
DNS
MX
SPF
DMARC
certum.pl
DNS records for certum.pl
A, AAAA, MX, NS, TXT, CAA + SPF/DMARC/IPv6
A / AAAA
✓ / —
SPF
✓
DMARC
✓
Issues
1
A
213.222.201.184
MX
0 certum-pl.mail.protection.outlook.com
10 pri.mx.certum.pl
20 sec.mx.certum.pl
NS
a1-222.akam.net
a11-66.akam.net
a16-64.akam.net
a22-67.akam.net
TXT
"MS=ms38611329"
"e73733cb8e798813ae0da06b9708d3b524952464e3c2c8a1e6eff96bb130751"
"mojecertpl-site-verification-1XyyfB1gkJGwpo1px2rj76P2otrIOr4q"
"v=spf1 ip4:213.222.201.98 ip4:213.222.198.98 -all"
What changed since last time
Loading history…
Other checked sites
Site security rating →
amazon.pl ·
92
gazeta.pl ·
79
cyberfolks.pl ·
93
vinted.pl ·
80
nazwa.pl ·
85
www.gov.pl ·
92
ceneo.pl ·
84
tvn24.pl ·
89
gemius.pl ·
81
google.pl ·
82
o2.pl ·
87
icm.edu.pl ·
90