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=rk1177.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
May 20, 2026
Valid Until
August 18, 2026 76 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
13:E9:D2:99:0A:97:D9:35:D3:B1:5B:93:DC:EA:08:32:04:39:0E:7D:3A:64:5A:E1:71:80:41:DD:7A:D3:CB:DA
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
educarium.com *.educarium.com *.crm.educarium.com *.gp.educarium.com *.portal.educarium.com *.remote.educarium.com *.sklep.educarium.com *.vpn.educarium.com *.ww1.educarium.com *.ww11.educarium.com *.ww38.educarium.com

Other domains in certificate

automotiveparts.au *.automotiveparts.au
ch9d8e8g5y.top *.ch9d8e8g5y.top
chidinest.com *.chidinest.com
*.3416fb5c-a2b6-42bc-b007-9aca943d516a.consensus.pics *.admin.consensus.pics *.api.consensus.pics *.app.consensus.pics *.assets.consensus.pics consensus.pics *.consensus.pics *.demo.consensus.pics *.dev.consensus.pics *.dk8k3r.consensus.pics *.ioxdnassets.consensus.pics *.mail.consensus.pics *.test.consensus.pics
csxdn.one *.csxdn.one
*.ekb.nelsonics.com *.ftp.nelsonics.com nelsonics.com *.nelsonics.com *.www3.nelsonics.com
*.com-www.rk1177.com *.comwww.rk1177.com *.m.rk1177.com rk1177.com *.rk1177.com
*.analytics.samiyah.net *.backend.samiyah.net *.mail.samiyah.net samiyah.net *.samiyah.net *.stats.samiyah.net *.superset.samiyah.net *.www.samiyah.net
*.api.txupin.games *.demo.txupin.games *.dev.txupin.games *.m.txupin.games txupin.games *.txupin.games *.www.txupin.games
*.api.xc151.shop *.app.xc151.shop *.ar0bh1.xc151.shop *.dev.xc151.shop *.mail.xc151.shop *.members.xc151.shop *.staging.xc151.shop *.test.xc151.shop xc151.shop *.xc151.shop
*.an.ziua.de *.ani.ziua.de *.apropie.ziua.de *.are.ziua.de *.astept.ziua.de *.ca.ziua.de *.copii.ziua.de *.cu.ziua.de *.era.ziua.de *.este.ziua.de *.in.ziua.de *.la.ziua.de *.mea.ziua.de *.n.ziua.de *.pentru.ziua.de *.sicu.ziua.de *.treaca.ziua.de *.ww38.ziua.de *.xn--aai-1lb.ziua.de ziua.de *.ziua.de
zymwo.qpon *.zymwo.qpon