DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Detected Technologies

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

Certificate Information

Subject
CN=highschoolfootballleague.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
March 16, 2026
Valid Until
June 14, 2026 62 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
7F:36:12:5E:25:3C:CE:B5:C4:09:D7:83:1A:AA:22:79:80:A3:3E:FD:04:B4:2C:CB:3C:11:25:B6:D3:54:ED:E0
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
einstructor.com *.einstructor.com *.liv.einstructor.com *.random.einstructor.com

Other domains in certificate

aiwaxiaoshuo.com *.aiwaxiaoshuo.com *.m.aiwaxiaoshuo.com
anntaylore.com *.anntaylore.com *.ci.anntaylore.com *.jenkins.anntaylore.com *.production.anntaylore.com
asiansescort.com *.asiansescort.com *.cicd.asiansescort.com *.jenkins.asiansescort.com *.pipeline.asiansescort.com
authorization.au *.authorization.au *.mail2.authorization.au
dadfuckingson.com *.dadfuckingson.com *.random.dadfuckingson.com
dexsreener.com *.dexsreener.com *.marketplace.dexsreener.com
*.cicd.eropeofile.com eropeofile.com *.eropeofile.com *.jenkins.eropeofile.com *.pipeline.eropeofile.com
fowlerartsbrooklyn.org *.fowlerartsbrooklyn.org *.www.fowlerartsbrooklyn.org
highschoolfootballleague.com *.highschoolfootballleague.com *.ww1.highschoolfootballleague.com
homefurnishing.com.au *.homefurnishing.com.au *.random.homefurnishing.com.au
*.ci.mecury-gift.com *.cicd.mecury-gift.com mecury-gift.com *.mecury-gift.com
*.cicd.sandiegolinedancing.com sandiegolinedancing.com *.sandiegolinedancing.com
*.ecommerce.swaovski.com *.mta1.swaovski.com *.random.swaovski.com swaovski.com *.swaovski.com *.www.swaovski.com
*.ci.tapba.com *.cicd.tapba.com *.nashville.tapba.com *.pipeline.tapba.com tapba.com *.tapba.com
*.sgray.teachcomputing.net *.sgrayibtxt.teachcomputing.net *.sgrayitgs.teachcomputing.net *.sgrayitgsnews.teachcomputing.net teachcomputing.net *.teachcomputing.net
*.random.theopinion.com.au theopinion.com.au *.theopinion.com.au
urlaubspiratwn.de *.urlaubspiratwn.de *.ww16.urlaubspiratwn.de
*.random.xn--ausbildung-homopathie-uec.de xn--ausbildung-homopathie-uec.de *.xn--ausbildung-homopathie-uec.de
*.random.xn--fiberglasngel-kfb.de xn--fiberglasngel-kfb.de *.xn--fiberglasngel-kfb.de
*.hostmaster.xn--knguruh-5wa.de xn--knguruh-5wa.de *.xn--knguruh-5wa.de
*.random.xn--tierheim-winhring-c0b.de xn--tierheim-winhring-c0b.de *.xn--tierheim-winhring-c0b.de
*.jenkins.yuvplayer.com *.m.yuvplayer.com yuvplayer.com *.yuvplayer.com
*.random.ziegenrassen.de ziegenrassen.de *.ziegenrassen.de