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74
Total
80
DNS
25
Email
77
Security
100
Network
100
Availability
Domainzdnet.co.uk
IPv43
IPv63
MX records0
StatusActive
Domain technical report

News and Advice on the World's Latest Innovations | ZDNET

zdnet.co.uk

ZDNET news and advice keep professionals prepared to embrace innovation and ready to build a better future.

Generated: 2026-08-10T11:45:29-05:00 · Cached result

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IPv43
IPv63
MX0
NS4

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

3 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

3 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

4 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 records0 / 20 pts · Mail

0 MX record(s).

!
SPF0 / 25 pts · Mail

SPF policy not found.

✓
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

50 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: ec2-54-157-108-158.compute-1.amazonaws.com

✓
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

3 record(s)
54.157.108.158
100.28.104.175
98.83.184.133

AAAA

3 record(s)
2600:1f18:297:ba24:b508:76de:f4a:df34
2600:1f18:297:ba0e:7900:f622:48a8:f266
2600:1f18:297:ba18:6ddc:5d8f:6053:f003

CNAME

0 record(s)
—

Not configured

MX

0 record(s)
—

Not configured

TXT

1 record(s)
" \"v=spf1 ~all\""

NS

4 record(s)
dns4.p01.nsone.net.
dns1.p01.nsone.net.
dns2.p01.nsone.net.
dns3.p01.nsone.net.

SOA

1 record(s)
dns1.p01.nsone.net. hostmaster.nsone.net. 1737029296 86400 7200 604800 86400

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

Not configured
—

Not configured

DMARC

Configured
v=DMARC1; p=reject; rua=mailto:qozv9ll0@ag.us.dmarcian.com; ruf=mailto:qozv9ll0@fr.us.dmarcian.com

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
News and Advice on the World's Latest Innovations | ZDNET
Description
ZDNET news and advice keep professionals prepared to embrace innovation and ready to build a better future.
Final URL
https://www.zdnet.com/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.zdnet.com/
Version
3
Server
redirectv2
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
zdnet.co.uk
Valid from
2026-07-01T23:51:15-05:00
Valid until
2026-09-29T23:51:14-05:00
Days remaining
50
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

3 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
—
X-Content-Type-OptionsNot detected
✓
X-Frame-OptionsImplemented
—
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
100.28.104.175, 54.157.108.158, 98.83.184.133
59,50 ms
Cloudflare
1.1.1.1
100.28.104.175, 54.157.108.158, 98.83.184.133
72,12 ms
Quad9
9.9.9.9
100.28.104.175, 54.157.108.158, 98.83.184.133
112,99 ms
OpenDNS
208.67.222.222
100.28.104.175, 54.157.108.158, 98.83.184.133
72,55 ms
AdGuard
94.140.14.14
100.28.104.175, 54.157.108.158, 98.83.184.133
2.076,71 ms

IP, geolocation and ASNAssociated network information

54.157.108.158

No data
success
No
country
region
city
asn
organization
isp

100.28.104.175

No data
success
No
country
region
city
asn
organization
isp

98.83.184.133

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

zdnet.co.uk

Port 25: Closed/unreachable - 0.8 ms - 
Port 465: Closed/unreachable - 4020.2 ms - 
Port 587: Closed/unreachable - 4020.8 ms -

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