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=21357.blog
Issuer
C=US, O=Let's Encrypt, CN=YR2
Valid From
June 16, 2026
Valid Until
September 14, 2026 84 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
8C:02:10:86:F7:78:B1:63:87:9E:C8:E1:09:14:EA:A1:CA:2E:DB:15:05:58:86:47:C2:AC:9C:4D:AF:31:F2:9D
Alternative Names
89 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

89 domains
winesource.net *.winesource.net *.client.winesource.net *.m.winesource.net *.members.winesource.net *.test.winesource.net *.vpn.winesource.net *.web.winesource.net

Other domains in certificate

21357.blog *.21357.blog *.klme0z.21357.blog
andywarholpictures.com *.andywarholpictures.com *.pl.andywarholpictures.com *.random.andywarholpictures.com *.ww38.andywarholpictures.com
beadartists.org *.beadartists.org
buckbrazos.com *.buckbrazos.com *.sell.buckbrazos.com
buylikes.it *.buylikes.it *.out.buylikes.it
*.a.fanea.com fanea.com *.fanea.com
*.360.franklinconvey.com *.assessments.franklinconvey.com franklinconvey.com *.franklinconvey.com *.msb.franklinconvey.com *.ww25.franklinconvey.com
fussballtorte.de *.fussballtorte.de
genuinetravelgurus.xyz *.genuinetravelgurus.xyz *.s5kjz.genuinetravelgurus.xyz
holzgiraffen.de *.holzgiraffen.de
*.app.ipuav.com *.demo.ipuav.com ipuav.com *.ipuav.com *.ix.ipuav.com *.members.ipuav.com *.qcy.ipuav.com *.qvke.ipuav.com *.rlar.ipuav.com *.shop.ipuav.com *.vwm.ipuav.com *.www.ipuav.com *.y.ipuav.com
leechenchinesecuisine.com *.leechenchinesecuisine.com
*.hostmaster.nash8503.com nash8503.com *.nash8503.com *.ww25.nash8503.com
*.m.pensionwatch.org pensionwatch.org *.pensionwatch.org
*.india.scapmed.com scapmed.com *.scapmed.com *.tickets.scapmed.com *.ww25.scapmed.com *.ww38.scapmed.com
*.random.sondeln.de sondeln.de *.sondeln.de
*.elephant.sourireaustress.com *.hostmaster.sourireaustress.com sourireaustress.com *.sourireaustress.com *.ssl.sourireaustress.com
*.hostmaster.ultimerewards.com ultimerewards.com *.ultimerewards.com
wewtteronline.de *.wewtteronline.de *.ww38.wewtteronline.de
*.puipx.xiaohuangshu.vip xiaohuangshu.vip *.xiaohuangshu.vip
*.wildcard.xn--k10a.com *.www.xn--k10a.com xn--k10a.com *.xn--k10a.com