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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
91
GRADE
A
FIX
0
REVIEW
2
PASS
7
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
7 PASS 2 REVIEW
B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.archdaily.com/
200https://archdaily.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://archdaily.com/ https://www.archdaily.com/

Consistent

B
TLS Certificate Expiry & Recommendations
136 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

136
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • Enable DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+
DNS Records
4 A records, 41 ms lookup
PASS
4 A records, 41 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 13.249.228.59, 13.249.228.61, 13.249.228.63, 13.249.228.90
Info::
Has 8 IPv6 (AAAA) record(s)
Got: 2600:9000:204e:2400:4:2b2a:34c0:93a1, 2600:9000:204e:7000:4:2b2a:34c0:93a1, 2600:9000:204e:b600:4:2b2a:34c0:93a1, 2600:9000:204e:f800:4:2b2a:34c0:93a1, 2600:9000:204e:c800:4:2b2a:34c0:93a1, 2600:9000:204e:be00:4:2b2a:34c0:93a1, 2600:9000:204e:7600:4:2b2a:34c0:93a1, 2600:9000:204e:6400:4:2b2a:34c0:93a1
Info::
4 nameserver(s) configured
Got: ns-1950.awsdns-51.co.uk, ns-293.awsdns-36.com, ns-712.awsdns-25.net, ns-1056.awsdns-04.org
Info::
5 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 41 ms
Got: 41 ms
A13.249.228.59, 13.249.228.61, 13.249.228.63, 13.249.228.90
AAAA2600:9000:204e:2400:4:2b2a:34c0:93a1, 2600:9000:204e:7000:4:2b2a:34c0:93a1, 2600:9000:204e:b600:4:2b2a:34c0:93a1, 2600:9000:204e:f800:4:2b2a:34c0:93a1, 2600:9000:204e:c800:4:2b2a:34c0:93a1, 2600:9000:204e:be00:4:2b2a:34c0:93a1, 2600:9000:204e:7600:4:2b2a:34c0:93a1, 2600:9000:204e:6400:4:2b2a:34c0:93a1
CNAME
NSns-1950.awsdns-51.co.uk, ns-293.awsdns-36.com, ns-712.awsdns-25.net, ns-1056.awsdns-04.org
MX
1 aspmx.l.google.com
5 alt2.aspmx.l.google.com
5 alt1.aspmx.l.google.com
10 alt4.aspmx.l.google.com
10 alt3.aspmx.l.google.com
TXT
google-site-verification=4wwlBtIcKrsZBEwdzWz5Qms3OGczeKHWMMOcYrHXutg
google-site-verification=xV-YEOcS6jcZS5L-xoApyy-PPRf6fPjlfrJII9jV_H4
google-site-verification=c2sONU9v6lndrJHC5JYyPV8SZjFxbApLBBO0qJ8IJuE
atlassian-domain-verification=AYkYz1xeXsulzP+7UlToarKBfcTQa9oXDb0b/uF/vnm6OHdAAY...
google-site-verification=bubMDyJ344hbAn66Ogw4r3srvWDhd-RtlnH48BRLX18
SPF v=spf1 include:_spf.google.com include:sendgrid.net include:spf.mandrillapp.com ...
_globalsign-domain-verification=VPemhDee0EKRXi0IPzeSUrn849jHevrjIaTeDYOTZ4
google-site-verification=CQuIhYUR0EErworNvXwWQUkGeKPsKH0jb4KSl0Q6OVA
facebook-domain-verification=f8irkbummzdvqfbdawbx0iqaixd7rg
CAALookup not available with standard resolver
Resolved in 41 ms

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A
Redirect Chain
1 redirect(s), 954 ms total
PASS
1 redirect(s), 954 ms total
Info::
Single redirect
Got: https://archdaily.com → https://www.archdaily.com/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 954 ms total
Got: 954 ms

https://archdaily.com

58 ms · HTTP/1.1

301

https://www.archdaily.com/

896 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://archdaily.com30158 msHTTP/1.1nginx/1.14.2
2https://www.archdaily.com/200896 msHTTP/1.1nginx/1.14.2

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2600:9000:204e:2400:4:2b2a:34c0:93a1, 2600:9000:204e:7000:4:2b2a:34c0:93a1, 2600:9000:204e:b600:4:2b2a:34c0:93a1, 2600:9000:204e:f800:4:2b2a:34c0:93a1, 2600:9000:204e:c800:4:2b2a:34c0:93a1, 2600:9000:204e:be00:4:2b2a:34c0:93a1, 2600:9000:204e:7600:4:2b2a:34c0:93a1, 2600:9000:204e:6400:4:2b2a:34c0:93a1
Got: 17 ms connect
IPv6 Ready
AAAA Records 2600:9000:204e:2400:4:2b2a:34c0:93a1, 2600:9000:204e:7000:4:2b2a:34c0:93a1, 2600:9000:204e:b600:4:2b2a:34c0:93a1, 2600:9000:204e:f800:4:2b2a:34c0:93a1, 2600:9000:204e:c800:4:2b2a:34c0:93a1, 2600:9000:204e:be00:4:2b2a:34c0:93a1, 2600:9000:204e:7600:4:2b2a:34c0:93a1, 2600:9000:204e:6400:4:2b2a:34c0:93a1 Connection Reachable (17 ms)
A
Crawlability
robots.txt present, no sitemap
PASS
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 413 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt references sitemap

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

robots.txt 200 OK
Size 413 B Sitemaps referenced 1 User-agents *, AhrefsBot, msnbot Blocking No — crawling allowed
User-agent: *
Disallow: *?replytocom
Allow: /
Disallow: /cl/
Disallow: /catalog/cl/
Disallow: /cn/
Disallow: /br/
Disallow: /catalog/br/
Disallow: /us/
Disallow: /mx/
Disallow: /catalog/mx/
Disallow: /co/
Disallow: /catalog/co/
Disallow: /pe/
Disallow: /catalog/pe/
Disallow: /1021178/AD

User-agent: AhrefsBot 
Crawl-delay: 300

User-agent: msnbot
Crawl-delay: 10

Sitemap: https://www.archdaily.com/sitemap.xml

sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

A+
Domain Intelligence
archdaily.com — via DreamHost, LLC, 18 years, 8 months old
PASS
archdaily.com — via DreamHost, LLC, 18 years, 8 months old
Info::
Domain registered until Nov 20, 2026 (7 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: DreamHost, LLC
Warning::
Registrar lock is NOT enabled
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Domain expiry

127 days

November 20, 2026

SSL certificate

136 days

Issued by Amazon

Domain age

18 years, 8 months

Registered November 20, 2007

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2600:9000:204e:be00:4:2b2a:34c0:93a1

Registrar

DreamHost, LLC

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar DreamHost, LLC
Created November 20, 2007 (18 years, 8 months ago)
Expires November 20, 2026 (7 months)
Last Updated October 20, 2025
Name Servers ns-1056.awsdns-04.org, ns-1950.awsdns-51.co.uk, ns-293.awsdns-36.com, ns-712.awsdns-25.net
DNSSEC Not enabled
Hosting
IP Address 2600:9000:204e:be00:4:2b2a:34c0:93a1
Data source: rdap (0.1s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 184 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
40 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
16 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
18 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
184 ms
Total Time Total request time from DNS lookup through full response.
184 ms

Connection waterfall

DNS Lookup 40 ms TCP Connect 16 ms TLS Handshake 18 ms Server Processing 110 ms Content Transfer 0 ms
A
CDN & Delivery
AWS CloudFront (Miss from cloudfront)
PASS
AWS CloudFront (Miss from cloudfront)
Info::
Site is served via AWS CloudFront CDN (edge: CDG50-P6)
Got: x-amz-cf-id: kBBQl0O4VPBiuARgujk6ETlLHFbN9YMzBO10NUeBk1m0splYwqIN_w==
Info::
CDN cache status: Miss from cloudfront
CDN Detected: AWS CloudFront
Provider AWS CloudFront Cache Status Miss from cloudfront Evidence x-amz-cf-id: kBBQl0O4VPBiuARgujk6ETlLHFbN9YMzBO10NUeBk1m0splYwqIN_w==
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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