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84
Total
80
DNS
90
Email
69
Security
85
Network
100
Availability
Domainceskenoviny.cz
IPv41
IPv61
MX records3
StatusActive
Domain technical report

České noviny | ČeskéNoviny.cz

ceskenoviny.cz

Generated: 2026-08-11T06:43:33-05:00 · Cached result

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IPv41
IPv61
MX3
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 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 chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

3 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

51 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers4 / 35 pts · Security

1 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: proxy.cn.cz

i
IPv4 diversity20 / 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

1 record(s)
80.79.27.48

AAAA

1 record(s)
2a01:430:0:37::48

CNAME

0 record(s)
—

Not configured

MX

3 record(s)
15 irp2.ctk.cz.
15 irp.ctk.cz.
10 mail.ctk.cz.

TXT

2 record(s)
"google-site-verification=p-USoXL8_yvK1R3343R5hYXOH91Mb_cfznnfeB7etSc"
"v=spf1 mx  include:incosrv.com ip4:62.168.9.222 ip4:62.168.9.223 ip4:62.168.9.132 ip4:94.247.37.222 ip4:80.79.27.48 ip4:193.86.66.220 a:support.clapix.com include:incosrv.com ~all"

NS

2 record(s)
ns.ctk.cz.
ns.ceskenoviny.cz.

SOA

1 record(s)
ns.ceskenoviny.cz. root.ns.ceskenoviny.cz. 2026051204 300 3600 604800 10800

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

0 record(s)
—

Not configured

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 mx  include:incosrv.com ip4:62.168.9.222 ip4:62.168.9.223 ip4:62.168.9.132 ip4:94.247.37.222 ip4:80.79.27.48 ip4:193.86.66.220 a:support.clapix.com include:incosrv.com ~all

DMARC

Configured
v=DMARC1; p=none; sp=none; rua=mailto:postmaster@incosrv.com!10m; ruf=mailto:postmaster@incosrv.com!10m; rf=afrf; pct=100; ri=86400

DKIM

Selector k1
v=DKIM1; k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCfMA0VgNkRrD+wbCp6GxPmjdD8zrxnLLu3g7TcLiI5oOS2izavjmH/ovxYJ3oMmDpex1Ng3J/bTHdw2EWQDl4kSUv6tzresbBJ55WssbM7oR9nbuXhBaw0WExpHQyq8Bwbx5VXEhyXsmXHxRMG1te/5D4I7kDHPK5MHMEolZesWQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
České noviny | ČeskéNoviny.cz
Description
Final URL
https://www.ceskenoviny.cz/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.ceskenoviny.cz/
Version
3
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
ceskenoviny.cz
Valid from
2026-07-04T01:28:50-05:00
Valid until
2026-10-02T01:28:49-05:00
Days remaining
51
Protocol
TLSv1.2
Cipher
ECDHE-ECDSA-AES256-GCM-SHA384

Security headers

1 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
—
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
80.79.27.48
204,26 ms
Cloudflare
1.1.1.1
80.79.27.48
375,26 ms
Quad9
9.9.9.9
80.79.27.48
257,45 ms
OpenDNS
208.67.222.222
80.79.27.48
478,62 ms
AdGuard
94.140.14.14
80.79.27.48
164,10 ms

IP, geolocation and ASNAssociated network information

80.79.27.48

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

irp2.ctk.cz

Port 25: Closed/unreachable - 210.6 ms - 
Port 465: Closed/unreachable - 4021 ms - 
Port 587: Closed/unreachable - 4172.4 ms -

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