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=serialet.info
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
May 03, 2026
Valid Until
August 01, 2026 82 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
BD:42:45:88:CB:1F:37:C7:47:66:62:09:D1:A0:B0:78:CE:E8:BE:3E:BA:98:C2:96:3E:AB:DF:21:26:CF:61:0C
Alternative Names
89 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

89 domains
kiri.studio *.kiri.studio *.backend.kiri.studio *.m.kiri.studio *.staging.kiri.studio

Other domains in certificate

*.4336462546768755.billigeuhrens.com billigeuhrens.com *.billigeuhrens.com
*.cb.chlorella.life chlorella.life *.chlorella.life *.comune.chlorella.life *.ww25.chlorella.life
*.barnikuy.garage-door-repair.click *.co.garage-door-repair.click *.com.garage-door-repair.click *.ganim.garage-door-repair.click garage-door-repair.click *.garage-door-repair.click *.pango.garage-door-repair.click
globalesg.xyz *.globalesg.xyz *.sitemap.globalesg.xyz
hokol0zbt30ae.my *.hokol0zbt30ae.my *.www.hokol0zbt30ae.my
*.b2band.kzlife.info *.familybrovchenko.kzlife.info *.fulllux.kzlife.info *.gerand.kzlife.info *.gtrftv.kzlife.info *.iampuma.kzlife.info kzlife.info *.kzlife.info *.maxtv007.kzlife.info *.mmdcrew.kzlife.info *.officialwolvesvideo.kzlife.info *.quattro882.kzlife.info *.thebrianmaps.kzlife.info
*.ajphvmx.newsfood.it *.api.newsfood.it *.dev.newsfood.it *.hostmaster.newsfood.it *.intelligence.newsfood.it *.mx.newsfood.it newsfood.it *.newsfood.it *.superset.newsfood.it *.www.newsfood.it
*.api.safewalking.it *.cpanel.safewalking.it *.demo.safewalking.it *.hostmaster.safewalking.it *.mail.safewalking.it safewalking.it *.safewalking.it *.webmail.safewalking.it *.www.safewalking.it
sageomegasoft.net *.sageomegasoft.net *.www.sageomegasoft.net
*.149d4816-3bdb-4486-aa32-06ca0c871b0b.serialet.info *.2.serialet.info *.41830b0d-8ff0-4791-8346-975dae24b455.serialet.info *.7df8357c-85fc-43d4-8c9a-587c323c36dd.serialet.info *.a.serialet.info *.a2d4db8c-c25c-4911-8621-dccc3c793f8d.serialet.info *.app.serialet.info *.assets.serialet.info *.billing.serialet.info *.blogs.serialet.info *.c087d97e-86fd-46b9-b495-0ea6a708f575.serialet.info *.cdn.serialet.info *.demo.serialet.info *.imaps.serialet.info *.insight.serialet.info *.maps.serialet.info *.mx03.serialet.info *.photos.serialet.info serialet.info *.serialet.info *.staging.serialet.info *.test.serialet.info *.vpn1.serialet.info *.windows.serialet.info *.www02.serialet.info
shilpa.live *.shilpa.live *.www.shilpa.live