DNS Gurus
Open Cached · just now
82/100 SECURITY SCORE

Certificate Information

Subject
CN=devicecon.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
September 29, 2025
Valid Until
December 28, 2025 51 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
DE:58:54:FB:46:E1:DB:AC:4C:14:8C:1A:FE:8B:71:4B:CA:2C:B6:12:30:CF:A2:63:E5:6F:86:FA:89:7C:19:65
Alternative Names
79 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

CAA Records (Certificate Authority Authorization)

CAA Records
Not Configured (Any CA can issue certificates)
CAA Issues
  • • No CAA records configured - any CA can issue certificates
Recommendations
  • • Implement CAA records to restrict which CAs can issue certificates for your domain
  • • This adds an extra layer of security against unauthorized certificate issuance
  • • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • • Consider adding 'iodef' record to receive security incident reports

Subject Alternative Names

79 domains
*.2020.devicecon.com
apptrick.co *.apptrick.co
arthurshall.com *.arthurshall.com
bizzare100.com *.bizzare100.com
chopshoptattoos.com *.chopshoptattoos.com
comprendes.de *.comprendes.de
*.antispam.devicecon.com *.auth.devicecon.com *.authsmtp.devicecon.com *.backup.devicecon.com *.beta.devicecon.com *.comune.devicecon.com *.demo.devicecon.com devicecon.com *.devicecon.com *.ftp.devicecon.com *.hostmaster.devicecon.com *.mails.devicecon.com *.mx4.devicecon.com *.mx5.devicecon.com *.mx7.devicecon.com *.out.devicecon.com *.outmail.devicecon.com *.pop3.devicecon.com *.portal.devicecon.com *.rds.devicecon.com *.rds1.devicecon.com *.rdweb.devicecon.com *.relay.devicecon.com *.remote.devicecon.com *.remote2.devicecon.com *.server.devicecon.com *.sitemap.devicecon.com *.sitemaps.devicecon.com *.smtps.devicecon.com *.ssl.devicecon.com *.sslvpn.devicecon.com *.sslvpn2.devicecon.com *.sslvpn3.devicecon.com *.vpn.devicecon.com *.vpn2.devicecon.com *.vpn3.devicecon.com *.wildcard.devicecon.com *.ww1.devicecon.com *.ww16.devicecon.com *.ww17.devicecon.com *.ww25.devicecon.com *.ww38.devicecon.com *.zmail.devicecon.com
dodpke.com *.dodpke.com
garten-fakten.de *.garten-fakten.de
hairremovalclinic.au *.hairremovalclinic.au
insurly.com.au *.insurly.com.au
investopediasimulator.com *.investopediasimulator.com *.ww38.investopediasimulator.com
joshuafrens-string.com *.joshuafrens-string.com
meizhoudongpola.com *.meizhoudongpola.com
norisbike.de *.norisbike.de
ronaldshannonjackson.com *.ronaldshannonjackson.com
tonershop.de *.tonershop.de
topdev.au *.topdev.au
zpu.au *.zpu.au