Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=17seconds.io
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
March 28, 2026
Valid Until
June 26, 2026 39 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
3C:D3:F8:88:53:EC:95:76:7B:7B:8A:73:B3:0B:AE:B1:7F:10:55:67:26:CD:77:B2:48:69:5F:F6:5F:80:1B:2B
Alternative Names

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
jackfrost.com *.jackfrost.com *.mrsherman.jackfrost.com

Other domains in certificate

17seconds.io *.17seconds.io *.admin.17seconds.io *.app.17seconds.io *.dashboard.17seconds.io *.help.17seconds.io *.portal.17seconds.io *.sales.17seconds.io
*.2.346807.xyz 346807.xyz *.346807.xyz
749t.cn *.749t.cn *.www.749t.cn
*.admin.awesomepicks.shop *.api.awesomepicks.shop *.app.awesomepicks.shop *.assets.awesomepicks.shop awesomepicks.shop *.awesomepicks.shop *.backup.awesomepicks.shop *.central.awesomepicks.shop *.demo.awesomepicks.shop *.dev.awesomepicks.shop *.home.awesomepicks.shop *.hostmaster.awesomepicks.shop *.owa.awesomepicks.shop *.sdcbvdemo.awesomepicks.shop *.test.awesomepicks.shop *.uat.awesomepicks.shop
bodyopic.com *.bodyopic.com *.ww25.bodyopic.com
*.hostmaster.investmentpower.pro investmentpower.pro *.investmentpower.pro *.mail.investmentpower.pro
ioniafloralandgifts.com *.ioniafloralandgifts.com *.sitemap.ioniafloralandgifts.com *.sitemaps.ioniafloralandgifts.com
*.ftp.lemongrassthousandoaks.com lemongrassthousandoaks.com *.lemongrassthousandoaks.com *.pop.lemongrassthousandoaks.com
*.app.lordserial-2025.com lordserial-2025.com *.lordserial-2025.com *.www1.lordserial-2025.com
*.mail.mernest.com mernest.com *.mernest.com
mobilehire.com.au *.mobilehire.com.au
origami.au *.origami.au
qy0613.sbs *.qy0613.sbs *.rustore.qy0613.sbs
*.6581893e-7bf6-4ae3-b820-6e5977784b02.skibrow.com *.admin.skibrow.com *.api.skibrow.com *.app.skibrow.com *.blog.skibrow.com *.c3be0959-9948-4f6e-88ae-9da634abab77.skibrow.com *.demo.skibrow.com *.dev.skibrow.com *.f3380239-47aa-4c92-8b49-a4212c70c713.skibrow.com *.f3a63e73-a79f-428e-9eb2-b86432bf7b06.skibrow.com *.hostmaster.skibrow.com *.ixdbudemo.skibrow.com *.members.skibrow.com *.rustore.skibrow.com *.shop.skibrow.com skibrow.com *.skibrow.com *.staging.skibrow.com *.test.skibrow.com *.vxousmembers.skibrow.com
*.apparel.vanbumen.com *.fixyouga.vanbumen.com *.kebumen.vanbumen.com *.kuwarisankidul.vanbumen.com *.moonlit.vanbumen.com vanbumen.com *.vanbumen.com *.wisata.vanbumen.com