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=sfitengg.org
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
April 16, 2026
Valid Until
July 15, 2026 66 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
A3:62:50:DF:06:E5:8C:24:50:3A:B4:57:D7:DA:03:E9:AA:EE:6B:8E:AF:8B:EC:73:7B:18:26:30:72:88:E3:87
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
downlyst.com *.downlyst.com *.mail.downlyst.com

Other domains in certificate

*.aad076da-0f55-4eb1-90b0-3d0f93ce63bc.coinbureau.news *.agent.coinbureau.news *.api.coinbureau.news *.app.coinbureau.news *.coin.coinbureau.news coinbureau.news *.coinbureau.news *.crypto.coinbureau.news *.looker.coinbureau.news *.mail.coinbureau.news *.staging.coinbureau.news *.trade.coinbureau.news
filmcompletvf.buzz *.filmcompletvf.buzz *.news.filmcompletvf.buzz *.sitemap.filmcompletvf.buzz *.sitemaps.filmcompletvf.buzz *.video.filmcompletvf.buzz
fundthatbiz.co *.fundthatbiz.co *.mail.fundthatbiz.co
*.demo.futemax.life futemax.life *.futemax.life *.ww38.futemax.life
*.blog.helenbarrett.org helenbarrett.org *.helenbarrett.org
highperformancephysio.com *.highperformancephysio.com *.hostmaster.highperformancephysio.com
*.itsservizial.leimprese.it leimprese.it *.leimprese.it
*.dev.nextmgmt.com nextmgmt.com *.nextmgmt.com *.test.nextmgmt.com
*.admin.nouryonhealthplan.com *.apps.nouryonhealthplan.com *.mail.nouryonhealthplan.com *.mwww.nouryonhealthplan.com *.notexistsvpn.nouryonhealthplan.com nouryonhealthplan.com *.nouryonhealthplan.com *.staging.nouryonhealthplan.com *.ww25.nouryonhealthplan.com *.www.nouryonhealthplan.com
*.codex.sfitengg.org *.cscita.sfitengg.org *.ecell.sfitengg.org *.hub.sfitengg.org *.irisfest.sfitengg.org *.itsa.sfitengg.org *.nss.sfitengg.org *.pfsense.sfitengg.org *.radlab.sfitengg.org *.robocon.sfitengg.org sfitengg.org *.sfitengg.org *.sfitpfsense.sfitengg.org *.sfitsc.sfitengg.org *.tpo.sfitengg.org
thumbilla.com *.thumbilla.com *.ww25.thumbilla.com *.ww38.thumbilla.com
*.hostmaster.venturabeachrvpark.com *.testdev.venturabeachrvpark.com venturabeachrvpark.com *.venturabeachrvpark.com *.www.venturabeachrvpark.com
*.i.vnbid.com *.rd.vnbid.com vnbid.com *.vnbid.com
*.hostmaster.zamosc.edu.pl *.lo3.zamosc.edu.pl *.mta-sts.zamosc.edu.pl *.pans.zamosc.edu.pl *.random.zamosc.edu.pl *.ww25.zamosc.edu.pl *.ww38.zamosc.edu.pl *.www.zamosc.edu.pl *.zak.zamosc.edu.pl zamosc.edu.pl *.zamosc.edu.pl