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https://artnet.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
77
GRADE
C
FIX
2
REVIEW
3
PASS
4
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
4 PASS 3 REVIEW 2 FIX
D
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
FIX
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
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 301 Expected: 301 redirect to HTTPS

www / non-www

200https://www.artnet.com/
200https://artnet.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://artnet.com/ http://www.artnet.com/

HTTP version does not redirect to HTTPS

D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 1160 bytes
Info::
sitemap.xml is present
Warning::
sitemap.xml contains invalid XML
Search engines may not be able to parse the sitemap. Fix XML validation errors.
Warning::
sitemap.xml is empty — no URLs found
An empty sitemap provides no value. Add <url> entries for your pages.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.

Learn more

Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.

Source: sitemaps.org / Google Search Central

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 1160 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed
<html style="height:100%"><head><META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW"><meta name="format-detection" content="telephone=no"><meta name="viewport" content="initial-scale=1.0"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><script type="text/javascript" src="/_Incapsula_Resource?SWJIYLWA=719d34d31c8e3a6e6fffd425f7e032f3"></script><script src="/nly-What-neuer-of-my-But-of-Rosse-a-Say-thinke-v" async></script><script type="text/javascript">if (sessionStorage) { sessionStorage.setItem('distil_referrer', document.referrer); }</script></head><body style="margin:0px;height:100%"><iframe id="main-iframe" src="/_Incapsula_Resource?SWUDNSAI=31&xinfo=55-59234627-0%202NNN%20RT%281776807065652%204%29%20q%280%20-1%20-1%202%29%20r%280%20-1%29%20B12%2814%2c0%2c0%29%20U20&incident_id=4558000100607694405-291967328710427319&edet=12&cinfo=0e000000ce99&rpinfo=600&cts=0scP8TrPaHvq8h8NC8OELATk7YSaAnLpXOMZ2LZYWjrLpcemZ4ogobiq53ARiirK&cip=141.227.188.193&mth=GET" frameborder=0 width="100%" height="100%" marginheight="0px" marginwidth="0px">Request unsuccessful. Incapsula incident ID: 4558000100607694405-291967328710427319</iframe></body></html>
sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
B
TLS Certificate Expiry & Recommendations
350 days until leaf cert expires — 2 issues to address
REVIEW

Certificate validity

350
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+
DNS Records
2 A records, 75 ms lookup
PASS
2 A records, 75 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 45.223.28.250, 45.223.18.250
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: duke.ns.cloudflare.com, pam.ns.cloudflare.com
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: 75 ms
Got: 75 ms
A45.223.28.250, 45.223.18.250
AAAA
CNAME
NSduke.ns.cloudflare.com, pam.ns.cloudflare.com
MX
10 aspmx.l.google.com
20 alt3.aspmx.l.google.com
20 alt2.aspmx.l.google.com
20 alt4.aspmx.l.google.com
20 alt1.aspmx.l.google.com
TXT
globalsign-domain-verification=75fcf418b16f30d91f9d0dde0968de25
google-site-verification=RthOUtPoM89ySTQNTX1lIYrpu2ppjmRiZ4jFyjoqNwM
globalsign-domain-verification=1013c70c90c427cd4c2c113ea2a0c0d9
cq4idiu.impervadns.net
atlassian-domain-verification=3EsuboZCKhCrY0O4JyK7scf8difiObc03RdPGCvASZa/aozbKq...
facebook-domain-verification=zzfr5q6ptt7nqp8apsvw80qkosumfc
google-site-verification=Sr1S-Zkzlo0WMfx-hx5qHgeAwIRWk6Kbl9yHmphzqEM
yahoo-verification-key=51htgZHwKB2Xw7MYP17TANJ9SrGGAC6+cjy9ejjtGkM=
google-site-verification=V4mcFSNtdIvz7wkBs2r4ZYiHAIB-sj1w0rwCs58bW7k
atlassian-domain-verification=JbYy+Zx9Jm2WRt2//5aA1boVvRSOGOA1OqB9jYfBIaphyVqaf9...
blitz=mu-67b954b2-33485d7f-c202ab1b-b1e7efb6
MS=ms23600819
7MaSZfZBS5FpserWhxOJdG/VAkIICNexnbTf5jFYk4Pm2Pjmhp4wGGq/dW3BT68rIgv3taopkKf9qEPM...
SPF v=spf1 ip4:90.187.126.1 include:_spf.google.com include:aspmx.sailthru.com inclu...
globalsign-domain-verification=F3A125515B5538B835F71913FEDE8E92
google-site-verification=9Jhm65AvAXIhZROa4TSlwpgi9MF1i3OJX5cPLqygPFc
anthropic-domain-verification-4nq4j6=GJoRFvWPxhRqQqs10iNdUpqM3
globalsign-domain-verification=D46CFC2D051CD7749AF9F065C5819680
apple-domain-verification=UByDRrXJyJt4gGw3
google-site-verification=Iv9A7ogFZM2IK5RyjFRFZ9NU44oXnsUcLSHFNLb9bdg
CAALookup not available with standard resolver
Resolved in 75 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), 409 ms total
PASS
1 redirect(s), 409 ms total
Info::
Single redirect
Got: https://artnet.com → https://www.artnet.com/ (301)
Info::
WWW normalization redirect

https://artnet.com

292 ms · HTTP/1.1

301

https://www.artnet.com/

117 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://artnet.com301292 msHTTP/1.1
2https://www.artnet.com/200117 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Domain Intelligence
artnet.com — via 101domain GRS Limited, 31 years, 4 months old, hosted on INCAPSULA - Incapsula Inc, US
PASS
artnet.com — via 101domain GRS Limited, 31 years, 4 months old, hosted on INCAPSULA - Incapsula Inc, US
Info::
Domain registered until May 22, 2027 (1 years, 1 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: 101domain GRS Limited
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.
Info::
Hosting: INCAPSULA - Incapsula Inc, US
Got: AS19551
Domain expiry

309 days

May 22, 2027

SSL certificate

350 days

Issued by Sectigo Limited

Domain age

31 years, 4 months

Registered May 21, 1995

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

INCAPSULA - Incapsula Inc, US

ASN AS19551

45.223.28.250

Registrar

101domain GRS Limited

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar 101domain GRS Limited
Created May 21, 1995 (31 years, 4 months ago)
Expires May 22, 2027 (1 years, 1 months)
Last Updated March 23, 2026
Name Servers duke.ns.cloudflare.com, pam.ns.cloudflare.com
DNSSEC Enabled
Hosting
IP Address 45.223.28.250
ASN AS19551 (INCAPSULA - Incapsula Inc, US)
Provider INCAPSULA - Incapsula Inc, US
Data source: rdap (0.3s)

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 320 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
31 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
94 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
99 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
320 ms
Total Time Total request time from DNS lookup through full response.
320 ms

Connection waterfall

DNS Lookup 31 ms TCP Connect 94 ms TLS Handshake 99 ms Server Processing 96 ms Content Transfer 0 ms
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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