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=redlineaudio.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 18, 2026
Valid Until
May 19, 2026 82 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
3C:AF:EA:C9:F0:D9:3C:7E:F4:0B:0F:AD:57:1B:B8:EE:C0:0C:D6:12:83:A8:CE:0E:5F:DF:04:C1:15:4D:EA:6C
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
dgae.pt *.dgae.pt *.areadocomerciante.dgae.pt *.correo.dgae.pt *.email.dgae.pt *.f22b445e-9c5f-41c9-bdb4-41f3a0c551c0.dgae.pt *.gov.dgae.pt *.mail.dgae.pt *.mail1.dgae.pt *.mail7.dgae.pt *.medu.dgae.pt *.sirghe.dgae.pt

Other domains in certificate

821.me *.821.me *.cdn.821.me *.livetv.821.me
alphadatarecovery.gr *.alphadatarecovery.gr
*.74528c53-12cb-48f9-96e5-7e3b8ad3541e.astranav.net astranav.net *.astranav.net *.d0f09642-59a0-4e2d-a915-740978408a7e.astranav.net *.pop.astranav.net *.sitemap.astranav.net *.sitemaps.astranav.net *.ssh.astranav.net *.stg.astranav.net *.vpn.astranav.net *.web.astranav.net
bateriasparaautomovil237911.icu *.bateriasparaautomovil237911.icu
bmicalculator4u.com *.bmicalculator4u.com
buyviagraonline-cheaprx.com *.buyviagraonline-cheaprx.com
balib.com.cn *.balib.com.cn
ustraveldocs.com.hk *.ustraveldocs.com.hk
doctorgoogle.ir *.doctorgoogle.ir
ednjfbo.us *.ednjfbo.us
fanoprofit.club *.fanoprofit.club
fridge-freezer-nz.com *.fridge-freezer-nz.com
fwialngv.biz *.fwialngv.biz
gemsmotors.com *.gemsmotors.com
glauben.org *.glauben.org
hot-tub.click *.hot-tub.click
hyjzvi2.cyou *.hyjzvi2.cyou
jadepalace-hotel.com *.jadepalace-hotel.com
joyrecruitmentagency.org *.joyrecruitmentagency.org
kopdartoto.blog *.kopdartoto.blog
nrldesign.link *.nrldesign.link
oscarmitt.art *.oscarmitt.art
portfoliolocal.my *.portfoliolocal.my
pronitnext.my *.pronitnext.my
redlineaudio.com *.redlineaudio.com *.sitemap.redlineaudio.com *.sitemaps.redlineaudio.com *.www.redlineaudio.com
satkamatkasatka.in *.satkamatkasatka.in
tchequie.org *.tchequie.org
thailandtower.com *.thailandtower.com
tircat.org *.tircat.org
uscistraductors.com *.uscistraductors.com
vpsw.org *.vpsw.org
xn--5su715b.com *.xn--5su715b.com