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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
90
GRADE
A
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 PASS 3 REVIEW
B
Redirect Chain
1 redirect(s), 1635 ms total
REVIEW
1 redirect(s), 1635 ms total
Info::
Single redirect
Got: https://cio.com → https://www.cio.com/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1635 ms total
Got: 1635 ms

https://cio.com

78 ms · HTTP/1.1

301

https://www.cio.com/

1557 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://cio.com30178 msHTTP/1.1cloudflare
2https://www.cio.com/2001557 msHTTP/1.1cloudflare

See the visual redirect chain in the HTTP Probe tab →

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.cio.com/
200https://cio.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://cio.com/ → https://cio.com/

Consistent

B
TLS Certificate Expiry & Recommendations
59 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

59
days left
0d 30d 60d 90d+

Recommended actions

  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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
2 A records, 39 ms lookup
PASS
2 A records, 39 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.18.27.143, 104.18.26.143
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700::6812:1b8f, 2606:4700::6812:1a8f
Info::
2 nameserver(s) configured
Got: kara.ns.cloudflare.com, boyd.ns.cloudflare.com
Info::
2 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: 39 ms
Got: 39 ms
A104.18.27.143, 104.18.26.143
AAAA2606:4700::6812:1b8f, 2606:4700::6812:1a8f
CNAME—
NSkara.ns.cloudflare.com, boyd.ns.cloudflare.com
MX
10 usb-smtp-inbound-1.mimecast.com
10 usb-smtp-inbound-2.mimecast.com
TXT
MS=ms50920058
SPF v=spf1 include:spf.protection.outlook.com include:cvent-planner.com include:mail...
P2A_5439_6
google-site-verification=kgXSqlEuYT_m_uwWCByBpKmiaVLisiAi9bPjzyelGTw
google-site-verification=2LYALBkopIFO6tv7MjA4tB1j6_46vyoodO-oydy69vE
j5tgtrai6ahjlr6jjn0r79lqjb
tinfoil-site-verification: af9e5a29d65e0df190141f01a2b13ef0e7982f9e=c579c2bfc1f3...
facebook-domain-verification=34yvsufvmw589g9t4ijxw0memvnvqy
0ed1fe018a1a2a44de16f14b2f95c90ee9b42cf963
google-site-verification=mwWBNUINQivpWGejipso4WgZaXG0hvD4a_otxEd3ZYU
google-site-verification=Dcr2yZEYDNQJ1_ajvbu1GTfDFohxUdNCHIkXC5jvEcE
OGJ4x6/5+QMn+1vS39pR8TA7cHMgYrgpAgmP8hcPCkQxLX4T3tqTpL7Er/AKhBWFiBipO10MB+bBvlAu...
CAALookup not available with standard resolver
Resolved in 39 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+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2606:4700::6812:1b8f, 2606:4700::6812:1a8f
Got: 17 ms connect
IPv6 Ready
AAAA Records 2606:4700::6812:1b8f, 2606:4700::6812:1a8f Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 37 URLs
PASS
robots.txt present, sitemap with 37 URLs
Info::
robots.txt is present
Got: 4341 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 37 entries
Info::
Sitemap index with 37 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 4341 B Sitemaps referenced 37 User-agents Ai2Bot-Dolma, AI2Bot, CCBot, dotbot, https://hada.news, img2dataset, Meta-ExternalAgent, Webzio-Extended, ClaudeBot, ImagesiftBot, Meta-ExternalFetcher, Seekr, cohere-ai, *, ICC-Crawler, VelenPublicWebCrawler, Arquivo-web-crawler, crawler4j, Diffbot, GPTBot, ISSCyberRiskCrawler, Meltwater, AwarioRssBot, AwarioSmartBot, Timpibot, anthropic-ai, Barkrowler, FacebookBot, FriendlyCrawler, Kangaroo Bot, MJ12bot, PanguBot, cohere-training-data-crawler, Applebot-Extended, Bytespider, Scrapy, JenkersBot Blocking No — crawling allowed
# ------------------------------------------------------

# Global Rules

# ------------------------------------------------------


User-agent: *

Disallow: /search*

Disallow: */filter/*

Disallow: /*?utm_*

Disallow: /*//*

Disallow: /wp-admin/

Disallow: /wp-login.php

Disallow: /wp-register.php

Disallow: /wp-includes/

Disallow: /xmlrpc.php

Disallow: /wp-json/

Disallow: /feed/

Disallow: /*/feed/

Disallow: /comments/feed/

Disallow: /*LICENSE.txt$

Disallow: /*README.md$

Disallow: /*README.txt$

Disallow: /*license.txt$

Disallow: /*readme.html$

Disallow: /*readme.md$

Disallow: /*readme.txt$

Disallow: /*package.json$

Disallow: /*composer.json$

Disallow: /*composer.lock$

Disallow: /*yarn.lock$


# ------------------------------------------------------

# Unwated Bots

# ------------------------------------------------------


User-agent: Ai2Bot-Dolma

Disallow: /

User-agent: AI2Bot

Disallow: /

User-agent: anthropic-ai

Disallow: /

User-agent: Applebot-Extended

Disallow: /

User-agent: Arquivo-web-crawler

Disallow: /

User-agent: AwarioRssBot

Disallow: /

User-agent: AwarioSmartBot

Disallow: /

User-agent: Barkrowler

Disallow: /

User-agent: Bytespider

Disallow: /

User-agent: CCBot

Disallow: /

User-agent: ClaudeBot

Disallow: / 

User-agent: cohere-ai

Disallow: /

User-agent: cohere-training-data-crawler

Disallow: /

User-agent: crawler4j

Disallow: /

User-agent: dotbot

Disallow: /

User-agent: Diffbot

Disallow: /

User-agent: FacebookBot

Disallow: /

User-agent: FriendlyCrawler

Disallow: /

User-agent: GPTBot

Disallow: /

User-agent: https://hada.news

Disallow: /

User-agent: ICC-Crawler

Disallow: /

User-agent: ImagesiftBot

Disallow: /

User-agent: img2dataset

Disallow: /

User-agent: ISSCyberRiskCrawler

Disallow: /

User-agent: JenkersBot

Disallow: /

User-agent: Kangaroo Bot

Disallow: /

User-agent: Meltwater

Disallow: /

User-agent: Meta-ExternalAgent

Disallow: /

User-agent: Meta-ExternalFetcher

Disallow: /

User-agent: MJ12bot

Disallow: /

User-agent: PanguBot

Disallow: /

User-agent: Scrapy

Disallow: /

User-agent: Seekr

Disallow: /

User-agent: Timpibot

Disallow: /

User-agent: VelenPublicWebCrawler

Disallow: /

User-agent: Webzio-Extended

Disallow: /


# ------------------------------------------------------

# Sitemaps

# ------------------------------------------------------


Sitemap: https://www.cio.com/sitemap-index.xml

Sitemap: https://www.cio.com/sitemap-news-en.xml

Sitemap: https://www.cio.com/sitemap-articles-en.xml

Sitemap: https://www.cio.com/sitemap-podcast-episodes-en.xml

Sitemap: https://www.cio.com/sitemap-video-episodes-en.xml

Sitemap: https://www.cio.com/sitemap-news-ja.xml

Sitemap: https://www.cio.com/sitemap-articles-ja.xml

Sitemap: https://www.cio.com/sitemap-video-episodes-ja.xml

Sitemap: https://www.cio.com/sitemap-pages-jp.xml

Sitemap: https://www.cio.com/sitemap-news-it.xml

Sitemap: https://www.cio.com/sitemap-articles-it.xml

Sitemap: https://www.cio.com/sitemap-pages-it.xml

Sitemap: https://www.cio.com/sitemap-news-ko.xml

Sitemap: https://www.cio.com/sitemap-articles-ko.xml

Sitemap: https://www.cio.com/sitemap-pages-kr.xml

Sitemap: https://www.cio.com/sitemap-news-es.xml

Sitemap: https://www.cio.com/sitemap-articles-es.xml

Sitemap: https://www.cio.com/sitemap-video-episodes-es.xml

Sitemap: https://www.cio.com/sitemap-pages-es.xml

Sitemap: https://www.cio.com/sitemap-pages.xml

Sitemap: https://www.cio.com/sitemap-pages-africa.xml

Sitemap: https://www.cio.com/sitemap-pages-asean.xml

Sitemap: https://www.cio.com/sitemap-pages-au.xml

Sitemap: https://www.cio.com/sitemap-pages-ca.xml

Sitemap: https://www.cio.com/sitemap-pages-in.xml

Sitemap: https://www.cio.com/sitemap-pages-ie.xml

Sitemap: https://www.cio.com/sitemap-pages-middle-east.xml

Sitemap: https://www.cio.com/sitemap-pages-nl.xml

Sitemap: https://www.cio.com/sitemap-pages-nz.xml

Sitemap: https://www.cio.com/sitemap-pages-uk.xml

Sitemap: https://www.cio.com/sitemap-events.xml

Sitemap: https://www.cio.com/sitemap-awards.xml

Sitemap: https://www.cio.com/sitemap-video-series.xml

Sitemap: https://www.cio.com/sitemap-podcast-series.xml

Sitemap: https://www.cio.com/sitemap-blog-series.xml

Sitemap: https://www.cio.com/sitemap-brandposts.xml

Sitemap: https://www.cio.com/sitemap-profiles.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 37 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
cio.com — via MarkMonitor Inc., 31 years, 7 months old
PASS
cio.com — via MarkMonitor Inc., 31 years, 7 months old
Info::
Domain registered until Feb 10, 2027 (9 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: MarkMonitor Inc.
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

208 days

February 10, 2027

SSL certificate

59 days

Issued by Google Trust Services

Domain age

31 years, 7 months

Registered February 9, 1995

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700::6812:1b8f

Registrar

MarkMonitor Inc.

Unlocked 2 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 MarkMonitor Inc.
Created February 9, 1995 (31 years, 7 months ago)
Expires February 10, 2027 (9 months)
Last Updated January 9, 2026
Name Servers boyd.ns.cloudflare.com, kara.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700::6812:1b8f
Data source: rdap (0.2s)

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

Connection waterfall

DNS Lookup 37 ms TCP Connect 17 ms TLS Handshake 22 ms Server Processing 34 ms Content Transfer 0 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: 9eff543cdd9bd125-CDG
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: 9eff543cdd9bd125-CDG
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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