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=caspermattress.shop
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
May 20, 2026
Valid Until
August 18, 2026 59 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
15:3F:67:2B:7A:2B:16:30:0A:47:C5:5A:0C:AC:36:16:42:2D:AA:4F:10:2A:E4:D5:AF:18:F3:42:4E:B5:9E:80
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
markplus.shop *.markplus.shop

Other domains in certificate

17j37.vip *.17j37.vip *.api.17j37.vip *.intranet.17j37.vip *.vip.17j37.vip
*.api.buyfonio.com buyfonio.com *.buyfonio.com *.rpm.buyfonio.com *.sitemaps.buyfonio.com
*.app.cartucceoriginali.it *.backend.cartucceoriginali.it cartucceoriginali.it *.cartucceoriginali.it *.console.cartucceoriginali.it *.dash.cartucceoriginali.it *.dashboard.cartucceoriginali.it *.notexistsapi.cartucceoriginali.it *.superset.cartucceoriginali.it
caspermattress.shop *.caspermattress.shop *.rustore.caspermattress.shop *.ww38.caspermattress.shop
chengren1.shop *.chengren1.shop
discountregistrar.com *.discountregistrar.com *.random.discountregistrar.com *.ww25.discountregistrar.com
flowersbythedozen.shop *.flowersbythedozen.shop
*.emv1.geographylessons.us geographylessons.us *.geographylessons.us *.mail.geographylessons.us *.www.geographylessons.us
gracejewelry.shop *.gracejewelry.shop
*.apply.inde3ed.com *.canary.inde3ed.com *.club.inde3ed.com *.conv.inde3ed.com *.e.inde3ed.com *.extranet.inde3ed.com *.german.inde3ed.com inde3ed.com *.inde3ed.com *.poczta.inde3ed.com *.users.inde3ed.com
lxc.de *.lxc.de *.szm.lxc.de
lyfix.live *.lyfix.live
m-assembly.shop *.m-assembly.shop
nfoidi.com *.nfoidi.com *.ww25.nfoidi.com *.ww38.nfoidi.com
semrueh.com *.semrueh.com *.ww25.semrueh.com
sex-test.de *.sex-test.de *.telefo.sex-test.de
shgz488.top *.shgz488.top
survivalrides.com *.survivalrides.com
*.app.tik.watch *.demo.tik.watch *.dev.tik.watch *.downloaded.tik.watch *.test.tik.watch tik.watch *.tik.watch
*.admin.vacay.cc *.api.vacay.cc *.app.vacay.cc *.assets.vacay.cc *.demo.vacay.cc *.dev.vacay.cc *.m.vacay.cc *.test.vacay.cc vacay.cc *.vacay.cc *.www.vacay.cc