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Total

100

DNS

Email

Security

100

Network

100

Availability

Domainxs4all.nl

IPv42

IPv62

MX records1

StatusActive

Domain technical report

XS4ALL - First Class Internet

xs4all.nl

XS4ALL First Class Internets, Televisie en Bellen. Voor veilig en betrouwbaar internet. Al jaren bekroond voor de allerbeste service.

Generated: 2026-08-08T22:05:28-05:00 · Cached result

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IPv42

IPv62

MX1

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

1 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

128 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: a79c56108cb1d0cd3.awsglobalaccelerator.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

2 record(s)

75.2.72.204
99.83.136.155

AAAA

2 record(s)

2600:9000:a400:dede:1a1c:a23f:9ae6:7bbc
2600:9000:a504:9080:40c0:d138:ca59:2e3d

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

10 mx.kpnmail.nl.

TXT

4 record(s)

"v=spf1 include:spf.ews.kpnxchange.com ~all"
"google-site-verification=qHhbnr_ViPAAN13v4NQGHDYCfXwM__O6XS9NJFL1IRI"
"google-site-verification=ixk8ILXv-df5AQBAbfJfXpu9EQUFYoHZwjAvpcG5tBE"
"MS=B895DD98732F0DADE7D04A1E53DF0DECBFEF770F"

NS

2 record(s)

ns11.kpn.net.
ns1.kpn.net.

SOA

1 record(s)

ns1.kpn.net. zonemaster.kpn.com. 2026080601 10800 3600 604800 3600

CAA

6 record(s)

0 issue "comodoca.com"
0 issue "sectigo.com"
0 issue "amazonaws.com"
0 issuewild "sectigo.com"
0 issue "letsencrypt.org"
0 issuewild "letsencrypt.org"

DS

1 record(s)

47437 13 2 3BA6C597A00690FFCB45EF6A64DD993A076600D069A6452750B0520B 9995B29C

DNSKEY

2 record(s)

256 3 13 3jXRNiCzINx6RiPk9w1lwl7wHuDodWSb0tt96dVStvUYHShObVlhZ99q hK+ZvMg7XKUTd1R3a71OHXFn7QYBcA==
257 3 13 zks0yeV0Wgx7JAAQwxri2Wq3WYQzkA7a5UxK8y/3qinw4Lmvbv7Hl65p kS2VSWQffGUZnf6MWDCHytFlgDhgKQ==

RRSIG

6 record(s)

DNSKEY 13 2 3600 20260820000000 20260730000000 47437 xs4all.nl. 9zvAYDUqhUmFYyhlGmXwi3HRvFXGBQc/IWhhS/tsq3+j2/VnDzfkyrMN 7wfJUq1GxmhA1y+JcHHiK+dGGt1Xyw==
SOA 13 2 3600 20260820000000 20260730000000 19327 xs4all.nl. 6pCyqNhNDzHmr9phNGY0PVxWDhqafKZYExykIJAh9zYXfWIrF3yq8g6+ xS4LqSVRr93ETPWVLN+K/H7F51UaOQ==
NS 13 2 3600 20260820000000 20260730000000 19327 xs4all.nl. Mry7MPoRSbWIshpgNFLOQd7ttfXlvir67LVSN0vZGieMK4R6JFdGLlm1 mA/2i1ZQK1J8k4sy+V5l1EtnvhYG0A==
AAAA 13 2 3600 20260820000000 20260730000000 19327 xs4all.nl. ZwF6r8VMqQSQr44M2oqdmMU3eBNZaPLd8F2AwmbWKvld0+FWMtekrCWX P8/UXDlA7G67tB8jlY3RT51SdyHP6g==
DS 13 2 3600 20260906051413 20260809003824 467 nl. 9DzzQe2F39juSLupXRHEFnw+o04Pz0hgjleZb3FDtEh2nic0e7VlrvR5 yXgzM9w0+QfAR0+mD62A4gdk+Dhuiw==
CAA 13 2 3600 20260820000000 20260730000000 19327 xs4all.nl. gyeKD9PVFZuN0f3N8Lh/S0atRZeQUg8tYvFX+onCXrwl22pjVGI5OxsC SLewtLif2pBGDJmXkqiRuimah0j1qA==

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.ews.kpnxchange.com ~all

DMARC

Configured

v=DMARC1; p=reject; adkim=r; aspf=r; rua=mailto:dmarc@kpnmail.nl

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

XS4ALL - First Class Internet

Description

XS4ALL First Class Internets, Televisie en Bellen. Voor veilig en betrouwbaar internet. Al jaren bekroond voor de allerbeste service.

Final URL

https://www.xs4all.nl:443/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.xs4all.nl:443/

Version

Server

AmazonS3

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Amazon

xs4all.nl

Valid from

2026-05-31T19:00:00-05:00

Valid until

2026-12-15T17:59:59-06:00

Days remaining

128

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

5 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

✓

Referrer PolicyImplemented

—

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

75.2.72.204, 99.83.136.155

146,10 ms

Cloudflare

1.1.1.1

75.2.72.204, 99.83.136.155

137,68 ms

Quad9

9.9.9.9

75.2.72.204, 99.83.136.155

155,60 ms

OpenDNS

208.67.222.222

75.2.72.204, 99.83.136.155

256,99 ms

AdGuard

94.140.14.14

75.2.72.204, 99.83.136.155

579,24 ms

IP, geolocation and ASNAssociated network information

75.2.72.204

No data

success

country

region

city

asn

organization

isp

99.83.136.155

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

mx.kpnmail.nl

Port 25: Closed/unreachable - 108.4 ms - 
Port 465: Closed/unreachable - 103.1 ms - 
Port 587: Closed/unreachable - 108.7 ms -

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