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Total

DNS

Email

Security

100

Network

100

Availability

Domainsmashingmagazine.com

IPv42

IPv62

MX records5

StatusActive

Domain technical report

Smashing Magazine — For Web Designers And Developers

smashingmagazine.com

Magazine on CSS, JavaScript, front-end, accessibility, UX and design. For developers, designers and front-end engineers.

Generated: 2026-08-08T21:23:50-05:00 · Cached result

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IPv42

IPv62

MX5

NS4

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

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 records20 / 20 pts · Mail

5 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

47 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: afa7f374f51cc8991.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)

3.33.186.135
15.197.167.90

AAAA

2 record(s)

2600:1f16:1a4:a001::1f6
2600:1f16:1a4:a001::1f5

CNAME

0 record(s)

—

Not configured

MX

5 record(s)

5 alt1.aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
10 alt3.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
1 aspmx.l.google.com.

TXT

4 record(s)

"google-site-verification=0robA8kpiXkVEX1ts-_xCYWRkXleQJpwyN_BYQYOX54"
"google-site-verification=e2dLL9LD1Z_jpCFp6BTtGMlu42BGc8ugnf_midmUIlk"
"v=spf1 include:_spf.google.com include:servers.mcsv.net include:spf.mandrillapp.com include:em4186.swell.store -all"
"google-site-verification=X5sd8PEDJqYLSR98RKgSozn-0RNpknXFlGoA-UXe5K0"

NS

4 record(s)

dns3.p06.nsone.net.
dns4.p06.nsone.net.
dns2.p06.nsone.net.
dns1.p06.nsone.net.

SOA

1 record(s)

dns1.p06.nsone.net. hostmaster.nsone.net. 1663285437 43200 7200 1209600 3600

SPF

Configured

v=spf1 include:_spf.google.com include:servers.mcsv.net include:spf.mandrillapp.com include:em4186.swell.store -all

DMARC

Configured

v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:22c84bb25c@rua.easydmarc.eu;ruf=mailto:22c84bb25c@ruf.easydmarc.eu;ri=86400;fo=1

DKIM

Selector k1

k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUoNyIR4Bn84LVcfZE20rmDeXQblIupNWBqLXM1Q+VieI/eZu/7k9/vOkLSaQQdml4Cv8lb3PcnluMVIhQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Smashing Magazine — For Web Designers And Developers

Description

Magazine on CSS, JavaScript, front-end, accessibility, UX and design. For developers, designers and front-end engineers.

Final URL

https://www.smashingmagazine.com/

HTTP status

206

HTTP

Status

HTTP/2 200

Final URL

https://www.smashingmagazine.com/

Version

Server

Netlify

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

*.smashingmagazine.com

Valid from

2026-06-27T04:00:27-05:00

Valid until

2026-09-25T04:00:26-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

4 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

✓

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

15.197.167.90, 3.33.186.135

100,57 ms

Cloudflare

1.1.1.1

15.197.167.90, 3.33.186.135

53,01 ms

Quad9

9.9.9.9

15.197.167.90, 3.33.186.135

70,90 ms

OpenDNS

208.67.222.222

15.197.167.90, 3.33.186.135

29,55 ms

AdGuard

94.140.14.14

15.197.167.90, 3.33.186.135

68,95 ms

IP, geolocation and ASNAssociated network information

3.33.186.135

No data

success

country

region

city

asn

organization

isp

15.197.167.90

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

alt1.aspmx.l.google.com

Port 25: Closed/unreachable - 1.1 ms - 
Port 465: Closed/unreachable - 4020.9 ms - 
Port 587: Closed/unreachable - 4020.3 ms -

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