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Total

100

DNS

Email

Security

100

Network

100

Availability

Domainseznamzpravy.cz

IPv42

IPv62

MX records2

StatusActive

Domain technical report

Seznam Zprávy

seznamzpravy.cz

Videa, články, aktuální zprávy z domova i ze světa. Zpravodajství a publicistika od redakce Seznam.cz.

Generated: 2026-08-11T08:03:49-05:00 · Cached result

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IPv42

IPv62

MX2

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

2 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

2 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 policy5 / 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.

DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

48 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers27 / 35 pts · Security

7 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: api-admin.seznamzpravy.cz

✓

IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓

IPv6 connectivity35 / 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

2 record(s)

185.66.189.31
77.75.78.215

AAAA

2 record(s)

2a02:598:a::78:215
2a02:598:c:189::31

CNAME

0 record(s)

—

Not configured

MX

2 record(s)

10 dcf53e4ed29c2220.mx1.emailprofi.seznam.cz.
20 dcf53e4ed29c2220.mx2.emailprofi.seznam.cz.

TXT

4 record(s)

"google-site-verification=3WChbRyTnusPYoDpLxirOZ9sPQjayF31-6zZudY6Dow"
"v=spf1 include:spf.szn.cz ~all"
"google-site-verification=1rpGOAN1jQ2P098_XrqixdBx-8YO2vftpYkqkKW8LKs"
"facebook-domain-verification=8uyprjar2qxq8hd2ts3xfa2aemuy1w"

NS

2 record(s)

ans.seznam.cz.
ams.seznam.cz.

SOA

1 record(s)

ans.seznam.cz. hostmaster.seznam.cz. 1786341912 900 300 604800 300

CAA

2 record(s)

0 iodef "mailto:abuse-caa@firma.seznam.cz"
0 issue "letsencrypt.org;validationmethods=dns-01"

DS

1 record(s)

11894 13 2 1030EFF599873FFE1F22F01082917DEF7113B04491F07F451FF858E2 B80FE573

DNSKEY

2 record(s)

256 3 13 24B4XiDi+HOQKyu4eDKD0aP1olUTA0lCkXDF04HYJ9oUeQ0lJr8vMtrj 3LXncAdYv6kLNBDI5tseCO6yPr02fw==
257 3 13 pRpBSHyHJLQM7aMpgbkqykib06sdyPH58BtHtKru7/La/JZnDwKVnmlH LoXruWtqLxbYrgb9FDCCuJFzq3xf4w==

RRSIG

4 record(s)

SOA 13 2 3600 20260820000000 20260730000000 12061 seznamzpravy.cz. YyOhg1+B3Nv8jGKDDrhcBSdNlkrklejVNY98AwBpYSVwo7q7cWaR3+4F OKckFH+3PWGhSbxIKgBOAYAsm+HH5w==
NS 13 2 3600 20260820000000 20260730000000 12061 seznamzpravy.cz. rN+3OEMEKpeKxdcy6xl9DmxUeNuR398OxCKhrlLEENI8VtIw5xqKY+Iu AA5PEIKDgQueahfqZcaxoIGkji3WMQ==
A 13 2 3600 20260820000000 20260730000000 12061 seznamzpravy.cz. x0TacdY6vdl7iaFAqydFUdx0FT2g6CvcwI7UdUFHJTjC8HNaFsAdCEfe fzoCZAHA2NOUJfZHGngtbSww34V+BA==
DS 13 2 3600 20260823054724 20260809041724 5166 cz. 2pZ6GJdfzoLCxMea8h+HvBAzvIFvl0TflYOIYLf/zNJ014eeeIzXFRof Ox+KKM3YsV0SQ7HTN5SHa9MnsV4Afw==

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 include:spf.szn.cz ~all

DMARC

Configured

v=DMARC1; p=quarantine; sp=reject; rua=mailto:abuse@seznam.cz,mailto:dmarc-rua@mailkit.com;

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Seznam Zprávy

Description

Videa, články, aktuální zprávy z domova i ze světa. Zpravodajství a publicistika od redakce Seznam.cz.

Final URL

https://www.seznamzpravy.cz/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.seznamzpravy.cz/

Version

Server

envoy

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

seznamzpravy.cz

Valid from

2026-07-01T00:05:47-05:00

Valid until

2026-09-29T00:05:46-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

7 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

✓

Referrer PolicyImplemented

—

Permissions PolicyNot detected

✓

Cross-Origin-Opener-PolicyImplemented

—

Cross-Origin-Embedder-PolicyNot detected

✓

Cross-Origin-Resource-PolicyImplemented

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

185.66.189.31, 77.75.78.215

62,36 ms

Cloudflare

1.1.1.1

185.66.189.31, 77.75.78.215

175,84 ms

Quad9

9.9.9.9

185.66.189.31, 77.75.78.215

422,06 ms

OpenDNS

208.67.222.222

185.66.189.31, 77.75.78.215

590,02 ms

AdGuard

94.140.14.14

185.66.189.31, 77.75.78.215

464,06 ms

IP, geolocation and ASNAssociated network information

185.66.189.31

No data

success

country

region

city

asn

organization

isp

77.75.78.215

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

dcf53e4ed29c2220.mx1.emailprofi.seznam.cz

Port 25: Closed/unreachable - 124.3 ms - 
Port 465: Closed/unreachable - 124.7 ms - 
Port 587: Closed/unreachable - 4140.4 ms -

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