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Total

DNS

Email

Security

Network

100

Availability

Domainwindguru.cz

IPv41

IPv60

MX records2

StatusActive

Domain technical report

Windguru

windguru.cz

Special wind and weather forecasts for windsurfing, kitesurfing and other wind related sports. Forecasts for any location on planet Earth!

Generated: 2026-08-10T15:55:36-05:00 · Cached result

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IPv41

IPv60

MX2

NS3

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

3 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

2 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

97 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers4 / 35 pts · Security

1 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: web.windguru.cz

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

82.208.41.65

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

2 record(s)

10 mailin1.windguru.cz.
100 mailin2.windguru.cz.

TXT

2 record(s)

"google-site-verification=-bjSLyX4Z7pAmJaOer0p_6m3c7eEfdnV44TRV_aCQK8"
"v=spf1 ip4:82.208.41.65 ip4:165.22.91.61 mx include:spf.active24.com include:_spf.m1.websupport.sk include:_spf.google.com -all"

NS

3 record(s)

ns1.websupport.cz.
ns3.websupport.eu.
ns2.websupport.cz.

SOA

1 record(s)

ns1.websupport.cz. admin.websupport.cz. 1767621268 7200 2048 1048576 2560

CAA

0 record(s)

—

Not configured

DS

1 record(s)

58449 13 2 103407AFFBED74F491D7C300126C0DA86AB4063E6480E27ECCE12B29 44B5D161

DNSKEY

2 record(s)

257 3 13 7Ab0JTcPBuLStjKxMkTYkEi7WFpXtBBLIl0h+g4AC4yDIdW5oXfuN8Bu HPVJJ3NId+uLEexSIqSeyrWtyy2W9w==
256 3 13 6aXh4N4fmE+/wfABFM0Gbq5tY2Xskb0FBRJflU77WWqlQv4em20K1+P7 5a5agaYrNSL/fFO8fu4LlW6dd5J6/w==

RRSIG

5 record(s)

SOA 13 2 86400 20260830000139 20260729223139 24966 windguru.cz. x584Nvq+LqVcPVrR7OpvOzsIm0wtqzc331/kiAU4tQ07EvOBit/RSTI8 69jcAOu5gzRkxqJK5KOypvdDZZVkRQ==
NS 13 2 3600 20260828230139 20260728213139 24966 windguru.cz. AZkUG+09PtjEWCPIDHPAViLSREMYG6zgF0rtKrhTnzG030zEEixxHt46 8usHkkwZ8j9ShYINOCJG35PMKQHkcw==
MX 13 2 600 20260828230139 20260728213139 24966 windguru.cz. bpy1hXyOin1ULKKX9KF3Di8j4E104aXHYXEzN48ddagn2MHgThAEQiuC 2g9tYAL6RJ4AMFFMlKIwOuomAf1YAA==
DS 13 2 3600 20260823054724 20260809041724 5166 cz. 7dpuByptj+IyvJ38EtrtGPA3YxFdCpP5nT8DUsys6UlwURcMvRuaWu9z DTuAr9jTERVB3cnQ6ZZHjuh5EtljQQ==
A 13 2 86400 20260828230139 20260728213139 24966 windguru.cz. bUOLIfTfOGutdf+0QX6rMIMb7G2V/ZAIkBlQuJiS0kqimb/MdafyFzIL 3wUrHBf07GBL8tlD+S0Z/ATQ8QjgFQ==

NSEC

0 record(s)

—

Not configured

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 ip4:82.208.41.65 ip4:165.22.91.61 mx include:spf.active24.com include:_spf.m1.websupport.sk include:_spf.google.com -all

DMARC

Configured

v=DMARC1; p=none; rua=mailto:vh@windguru.cz; pct=100; adkim=r; aspf=r

DKIM

Selector mail

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnQJqE09ndg/RPzPvkyvNL9XEW4d6h7fx0XoI9Upka4SodnVb1NtvloBHHQkzL4UxqJlW9BD/4eUJbkvBQuvFf3BfFcAq1vcKFRgl39UVVYF+w0s66g2qeM4beAqdm+VeVz+d48mWx6nEy9lFXAqJjt9UsWcrMSadOBAtGSlnsZlV80ZdFem5jZbOnDsCIVXJvqxLRQKGfhUlY5Fvsh6TdCUXNNk0OdOpDt07iRB8opTP0kKWLmS+jyxRw35KLbyx/REb6gDrUGQ/Gl4LD3mXQDezVmqO3cTJnN7s1NdRTqhGPfndByVOH8O8Qf25nfPqG+k/6DyUO3QMmbC0DcZOcQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Windguru

Description

Special wind and weather forecasts for windsurfing, kitesurfing and other wind related sports. Forecasts for any location on planet Earth!

Final URL

https://www.windguru.cz/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.windguru.cz/

Version

Server

lighttpd/1.4.79

X-Powered-By

PHP/8.3.31

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

*.windguru.cz

Valid from

2026-04-30T19:00:00-05:00

Valid until

2026-11-15T17:59:59-06:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

1 active

—

HSTSNot detected

✓

Content Security PolicyImplemented

—

X-Content-Type-OptionsNot detected

—

X-Frame-OptionsNot detected

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

82.208.41.65

67,03 ms

Cloudflare

1.1.1.1

82.208.41.65

119,23 ms

Quad9

9.9.9.9

82.208.41.65

50,66 ms

OpenDNS

208.67.222.222

82.208.41.65

272,63 ms

AdGuard

94.140.14.14

82.208.41.65

67,72 ms

IP, geolocation and ASNAssociated network information

82.208.41.65

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

mailin1.windguru.cz

Port 25: Closed/unreachable - 24.5 ms - 
Port 465: Closed/unreachable - 123.1 ms - 
Port 587: Closed/unreachable - 146.3 ms -

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