DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Let's Encrypt logo Let's Encrypt Active incidents

Certificate Information

Subject
CN=ostonserver.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
April 30, 2026
Valid Until
July 29, 2026 76 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
7E:07:44:F9:44:66:FF:48:9D:9C:FC:9D:EA:EE:D7:98:C6:DA:38:D3:A0:67:FC:CB:2F:FC:20:C9:F3:D5:AC:EF
Alternative Names
90 domains

Security Configuration

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

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

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

90 domains
ostonserver.com *.ostonserver.com *.api.ostonserver.com *.rvmapi.ostonserver.com

Other domains in certificate

1on1.co.za *.1on1.co.za
agentoagent.com *.agentoagent.com *.agtx1.agentoagent.com *.dprox1.agentoagent.com *.prox1.agentoagent.com
*.api8.apiregion721.xyz apiregion721.xyz *.apiregion721.xyz *.chat.apiregion721.xyz *.m10.apiregion721.xyz *.m6.apiregion721.xyz *.m8.apiregion721.xyz *.m9.apiregion721.xyz *.ppt.apiregion721.xyz *.pptstatic.apiregion721.xyz *.rankv21.apiregion721.xyz *.static.apiregion721.xyz *.upload.apiregion721.xyz *.ww25.apiregion721.xyz
ceffo.it *.ceffo.it *.hostmaster.ceffo.it
*.api.ev77.ad *.demo.ev77.ad ev77.ad *.ev77.ad
heartforartonline.com *.heartforartonline.com
hoshinoshizukudo.me *.hoshinoshizukudo.me *.ww25.hoshinoshizukudo.me *.ww3.hoshinoshizukudo.me
hotsuppliers.com *.hotsuppliers.com
mintagelab.com *.mintagelab.com *.www.mintagelab.com
*.api.mykitchen.it *.hostmaster.mykitchen.it mykitchen.it *.mykitchen.it *.pop3.mykitchen.it *.rds.mykitchen.it *.remote.mykitchen.it *.staging.mykitchen.it
*.central.plasticminiature.com *.dashboard.plasticminiature.com plasticminiature.com *.plasticminiature.com *.preview.plasticminiature.com *.rds.plasticminiature.com *.rdweb.plasticminiature.com *.stg.plasticminiature.com *.vdi.plasticminiature.com
referralbonuses.net *.referralbonuses.net *.ww25.referralbonuses.net *.www.referralbonuses.net
*.research.riceve.it riceve.it *.riceve.it *.staging.riceve.it
*.mx.roots.bio roots.bio *.roots.bio
russia-escorts.info *.russia-escorts.info
struktur.studio *.struktur.studio
*.admin.sunshinecorps.biz *.dev.sunshinecorps.biz sunshinecorps.biz *.sunshinecorps.biz
*.hostmaster.tradenames.uk tradenames.uk *.tradenames.uk
western7nion.com *.western7nion.com *.ww25.western7nion.com
*.03590405-64b3-4154-ae46-a566ce2eabf8.worldsoccer.family *.client.worldsoccer.family *.dev.worldsoccer.family worldsoccer.family *.worldsoccer.family