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=billigerr-telefonieren.de
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
February 09, 2026
Valid Until
May 10, 2026 75 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
27:0F:75:99:DF:F5:31:91:54:CD:84:3F:E6:AE:50:35:1B:FB:18:21:B3:2F:B2:C1:E5:BE:01:10:1F:D1:85:30
Alternative Names
83 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

83 domains
starlets.au *.starlets.au

Other domains in certificate

asthmamonitoring.org *.asthmamonitoring.org
balajimovieplex.com *.balajimovieplex.com
beautysexmovies.com *.beautysexmovies.com
billigerr-telefonieren.de *.billigerr-telefonieren.de
capeverdeusembassy.org *.capeverdeusembassy.org
chinadragonshipley.co.uk *.chinadragonshipley.co.uk
dionisioheiderscheid.com *.dionisioheiderscheid.com
dirtysparrows.pl *.dirtysparrows.pl
hahaspizzagyromediterraneanfood.com *.hahaspizzagyromediterraneanfood.com
*.ag.hasw.com *.asmtp.hasw.com *.fallback.hasw.com hasw.com *.hasw.com *.mx1.hasw.com *.www.hasw.com
homesteadflorist.com *.homesteadflorist.com
jewishhotline.com *.jewishhotline.com
jio.gold *.jio.gold
jlayers.com *.jlayers.com
kaai.info *.kaai.info
kuzey-ajans.com *.kuzey-ajans.com
lacartons.com *.lacartons.com
lundvacations.com *.lundvacations.com
markaj355.com *.markaj355.com
me-tube.com *.me-tube.com
mytee.store *.mytee.store
odin.style *.odin.style
papa.pizza *.papa.pizza
parsnip.au *.parsnip.au
passing.au *.passing.au
pervetherapy.com *.pervetherapy.com
posh.care *.posh.care
posh.center *.posh.center
risen-lifechurch.org *.risen-lifechurch.org
*.ftp.senyumsaja.click senyumsaja.click *.senyumsaja.click
spinreview.pl *.spinreview.pl *.ww25.spinreview.pl
supercleanersinc.com *.supercleanersinc.com
thetrendingview.com *.thetrendingview.com
thingsyoungerthanmccain.com *.thingsyoungerthanmccain.com
ttsfre.com *.ttsfre.com
vis.blue *.vis.blue
wits.network *.wits.network