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
/
dfg.de
/
SSL / TLS
Passport
TLS
DNS
MX
SPF
DMARC
dfg.de
SSL/TLS certificate for dfg.de
Certificate is valid. Expires in 64 days.
A
SSL/TLS
A
Days until expiry
64
Issuer
Let's Encrypt
TLS version
TLSv1.3
Hostname match
yes
HSTS
max-age=31536000
SAN
dfg.de, www.dfg.de
What changed since last time
Loading history…
Other checked sites
Site security rating →
gq-magazin.de ·
71
fh-koeln.de ·
85
in-berlin.de ·
77
brigitte.de ·
90
winfuture.de ·
94
3sat.de ·
81
domainmarkt.de ·
69
sparkasse.de ·
91
yahoo.de ·
81
rptu.de ·
90
uni-duesseldorf.de ·
82
fact-finder.de ·
75