DNS Gurus
Cached · just now
97/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Let's Encrypt logo Let's Encrypt

Certificate Information

Subject
CN=addy.io
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
March 25, 2026
Valid Until
June 23, 2026 78 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
30:41:9A:52:B1:A7:E6:4A:4C:24:03:0C:59:32:FA:67:3F:56:DA:F5:A8:CE:BF:31:ED:A2:B8:E8:CB:00:BF:B9
Alternative Names
3 domains

Security Configuration

TLS Protocols
TLS 1.2
Forward Secrecy
Limited (Check cipher configuration)
Warnings
  • • TLS 1.3 is not supported (recommended)

HTTP Security Headers

Status
Strict-Transport-Security
Excellent
max-age=63072000; includeSubDomains; preload
Content-Security-Policy
Strong
default-src; base-uri; form-action; +10 more Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Present
accelerometer=(), camera=(), geolocation=(); +5 more

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Authorized CAs
letsencrypt.org
Wildcard CAs
letsencrypt.org
Incident Reporting
Recommendations
  • • Consider using critical flag (flags=128) for stricter CAA enforcement

Subject Alternative Names

3 domains
addy.io *.addy.io mta-sts.help.addy.io