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=sefer.it
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
May 03, 2026
Valid Until
August 01, 2026 81 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
54:05:6D:A2:12:E8:4A:CD:48:85:37:BF:26:3D:E8:EB:B3:8C:57:1B:34:30:E7:69:43:79:30:E9:55:64:EA:0B
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
fullshot.it *.fullshot.it *.analytic.fullshot.it *.app.fullshot.it *.backend.fullshot.it *.dashboard.fullshot.it *.demo.fullshot.it *.relay.fullshot.it *.www.fullshot.it

Other domains in certificate

31853.com *.31853.com *.remote.31853.com
91847.org *.91847.org *.www.91847.org
audiovisualtennessee.com *.audiovisualtennessee.com *.community.audiovisualtennessee.com
exroj.software *.exroj.software *.s.exroj.software
*.86f49d7d-a45c-4070-bf8f-26644ddc530c.fitnessmodells.com *.admin.fitnessmodells.com *.api.fitnessmodells.com *.app.fitnessmodells.com *.avdhxintranet.fitnessmodells.com *.b3ec8b67-f4c0-4fca-b1ec-20afd5b32a61.fitnessmodells.com *.backend.fitnessmodells.com *.cadastro.fitnessmodells.com *.cloud.fitnessmodells.com *.demo.fitnessmodells.com *.dev.fitnessmodells.com fitnessmodells.com *.fitnessmodells.com *.hostmaster.fitnessmodells.com *.intranet.fitnessmodells.com *.landings.fitnessmodells.com *.m.fitnessmodells.com *.portal.fitnessmodells.com *.rd.fitnessmodells.com *.rds.fitnessmodells.com *.rdweb.fitnessmodells.com *.remote.fitnessmodells.com *.shop.fitnessmodells.com *.staging.fitnessmodells.com *.wildcard.fitnessmodells.com *.ww6.fitnessmodells.com *.www.fitnessmodells.com
pmplc.software *.pmplc.software *.s.pmplc.software
*.ci.sefer.it *.dash.sefer.it *.data.sefer.it *.database.sefer.it *.db.sefer.it *.dev.sefer.it *.hostmaster.sefer.it *.intelligence.sefer.it *.mail.sefer.it *.notexistsdata.sefer.it *.pma.sefer.it *.preprod.sefer.it *.redash.sefer.it *.reporting.sefer.it sefer.it *.sefer.it *.smtp.sefer.it *.stats.sefer.it *.superset.sefer.it *.vpnssl.sefer.it
*.dev.sneakthis.shop *.news.sneakthis.shop *.sip.sneakthis.shop sneakthis.shop *.sneakthis.shop *.www.sneakthis.shop *.xxeycsitemaps.sneakthis.shop
*.155bb213-ed93-4f32-b146-90e32c5e7521.vc77.cologne *.41a4fc3a-e639-4e29-84ee-e72dbcedde47.vc77.cologne *.api.vc77.cologne *.app.vc77.cologne *.dev.vc77.cologne *.f0866b03-01b0-4f45-bbfc-69f62a137c5d.vc77.cologne *.gnkprtest.vc77.cologne *.members.vc77.cologne *.test.vc77.cologne vc77.cologne *.vc77.cologne *.www.vc77.cologne