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=katrina.net
Issuer
C=US, O=Let's Encrypt, CN=YR2
Valid From
June 04, 2026
Valid Until
September 02, 2026 71 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
1D:20:86:2E:53:2B:4E:19:78:D3:6B:F9:BE:93:92:B7:0E:C8:D2:07:DA:63:8D:6F:55:D9:89:7B:D2:74:18:47
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
askblogger.com *.askblogger.com *.classifieds.askblogger.com *.hostmaster.askblogger.com *.photoshop.askblogger.com *.www.askblogger.com

Other domains in certificate

boneengineering.com *.boneengineering.com
buy-used-smart-tv-brazil.sbs *.buy-used-smart-tv-brazil.sbs *.prod.buy-used-smart-tv-brazil.sbs
*.app.goldenapples.it goldenapples.it *.goldenapples.it *.hostmaster.goldenapples.it *.metrics.goldenapples.it *.superset.goldenapples.it
highlyratedgastroenterologists.site *.highlyratedgastroenterologists.site *.www.highlyratedgastroenterologists.site
journalbotpro.com *.journalbotpro.com *.qpmm2h.journalbotpro.com
*.admin.katrina.net *.anyconnect.katrina.net *.connect.katrina.net *.database.katrina.net *.help.katrina.net *.hosted-by.katrina.net katrina.net *.katrina.net *.rd.katrina.net *.rds.katrina.net *.remoto.katrina.net *.vc.katrina.net *.vpn.katrina.net *.vpnssl.katrina.net
multiplecomputationdevices.site *.multiplecomputationdevices.site *.ww38.multiplecomputationdevices.site
*.com.nagarpalikadei.org *.in.nagarpalikadei.org nagarpalikadei.org *.nagarpalikadei.org *.star.nagarpalikadei.org
*.com.pescamundo.com pescamundo.com *.pescamundo.com
qynb123.com *.qynb123.com *.share.qynb123.com
sbcya.com *.sbcya.com
*.m.scqh.net scqh.net *.scqh.net
*.access.wwfjp.org *.connect.wwfjp.org *.correo.wwfjp.org *.email.wwfjp.org *.exchange.wwfjp.org *.mail.wwfjp.org *.mail3.wwfjp.org *.mymail.wwfjp.org *.outlook.wwfjp.org *.rdp.wwfjp.org *.store.wwfjp.org *.test.wwfjp.org *.webmail.wwfjp.org *.wp.wwfjp.org wwfjp.org *.wwfjp.org
*.backend.xn--nztu2k.com *.client.xn--nztu2k.com *.demo.xn--nztu2k.com *.dev.xn--nztu2k.com *.development.xn--nztu2k.com *.git.xn--nztu2k.com *.hostmaster.xn--nztu2k.com *.m.xn--nztu2k.com *.mobile.xn--nztu2k.com *.preprod-superset.xn--nztu2k.com *.reporting.xn--nztu2k.com *.secure.xn--nztu2k.com *.webtest.xn--nztu2k.com xn--nztu2k.com *.xn--nztu2k.com
*.admin.zxiom.trade zxiom.trade *.zxiom.trade