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=openatreetmap.org
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 05, 2026
Valid Until
May 06, 2026 75 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
1E:95:98:38:58:BE:DC:F0:3D:E9:3B:16:AA:35:97:3E:34:BA:E1:87:8B:B2:68:12:34:88:3F:EC:BF:B8:32:87
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
openflat.it *.openflat.it

Other domains in certificate

aaltoma.net *.aaltoma.net
aavv28.xyz *.aavv28.xyz
aba-ws.org *.aba-ws.org
accc.lol *.accc.lol
accessgrowthsolutionleaders.com *.accessgrowthsolutionleaders.com
accountingperspectives.com *.accountingperspectives.com
nexusvc.biz *.nexusvc.biz
neymar-88sirsak.biz *.neymar-88sirsak.biz
nezha.love *.nezha.love
ngqfjwyx.xyz *.ngqfjwyx.xyz
nhaawpk.cc *.nhaawpk.cc
nicolahaswell.com *.nicolahaswell.com
nihatberker.net *.nihatberker.net
niken-hkb77.sbs *.niken-hkb77.sbs
nikkeiex.org *.nikkeiex.org
nomenu.co *.nomenu.co
nonconversant.com *.nonconversant.com
nooralmamzarmedicaltreatment.com *.nooralmamzarmedicaltreatment.com
novafins.pro *.novafins.pro
nowmusic.it *.nowmusic.it
noxveeatgw.org *.noxveeatgw.org
nr4.top *.nr4.top
ntopak.biz *.ntopak.biz
nurse-uae2.click *.nurse-uae2.click
nutrisolis.com *.nutrisolis.com
nutritango.com *.nutritango.com
nuttallbrown.us *.nuttallbrown.us
nvdacrpt.website *.nvdacrpt.website
nwosoldier.com *.nwosoldier.com
nygtvx4mg.buzz *.nygtvx4mg.buzz
nywgryl.com *.nywgryl.com
oakstreetchic.com *.oakstreetchic.com
offerforme.it *.offerforme.it
ohiofiresuppression.net *.ohiofiresuppression.net
ojmbzve528.vip *.ojmbzve528.vip
okjhg.co *.okjhg.co
oldtown.us *.oldtown.us
onecitymail.com *.onecitymail.com
onlineforyou.it *.onlineforyou.it
onlineleagueofpoker.it *.onlineleagueofpoker.it
openatreetmap.org *.openatreetmap.org
optezorpa.org *.optezorpa.org
optimafunds.org *.optimafunds.org
oreequeg.com *.oreequeg.com