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https://csis.org

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
92
GRADE
A
FIX
0
REVIEW
2
PASS
6
INFO
1
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 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.csis.org/
200https://csis.org/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://csis.org/ → https://csis.org/

Consistent

B
TLS Certificate Expiry & Recommendations
78 days until leaf cert expires — 5 issues to address
REVIEW

Certificate validity

78
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • 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, 53 ms lookup
PASS
2 A records, 53 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.20.38.152, 172.66.144.156
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:10::6814:2698, 2606:4700:10::ac42:909c
Info::
2 nameserver(s) configured
Got: nash.ns.cloudflare.com, betty.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: 53 ms
Got: 53 ms
A104.20.38.152, 172.66.144.156
AAAA2606:4700:10::6814:2698, 2606:4700:10::ac42:909c
CNAME—
NSnash.ns.cloudflare.com, betty.ns.cloudflare.com
MX
10 mxa-001d3201.gslb.pphosted.com
10 mxb-001d3201.gslb.pphosted.com
TXT
_globalsign-domain-verification=16aKJufSrMKbcCAKCXzVC4PbCHEMl2CuparSiVEdN9
4e2dbbba73fe55027e0330d7d0e11c32cf769de55b398733f3
google-site-verification=noGvImnAKJYNq44dR8narezMMwIXKMv__yHaq8QlYLA
google-site-verification=1uYlIYoYVlBwqeuYcddzruxf3Icen-qPAWAlHUfEnRU
globalsign-domain-verification=GAw3QxpoQCUd6MEBcIrvwmn1548c2kZ_M8jDU57Ho3
_globalsign-domain-verification=MK_ZKmss4D_DdzGOsssHxxBOK6hJc6LGycFvNOESdZ
pardot906722=5c76eff2a274026ec8c83cfa971f37eb156ea74548ee8b1186048651ed388798
openai-domain-verification=dv-s2RpqUJSpTcKGhbw4MJ2BTIJ
SPF v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
ZOOM_verify_5zbcWYGbTEOz2WwLUjZPKA
apple-domain-verification=REp6ZDBwDrlKlw8T
anthropic-domain-verification-qp2z1f=of9b9i88OHTGJgf0mVKf4Lzqw
MS=ms43762543
google-site-verification=5cJ3pQgo74dImHbM0TRq32lQt7ug_tiW0X60Zi4KRbQ
zoho-verification=zb26035150.zmverify.zoho.com
linkedin-site-verification=5099e4a8-a389-477f-bd31-fe4da658edf1
bw=yiKhHuBYK+b62QjIBOX9UagU+YTgVDXLuOH8j1LOdsao
CAALookup not available with standard resolver
Resolved in 53 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), 179 ms total
PASS
1 redirect(s), 179 ms total
Info::
Single redirect
Got: https://csis.org → https://www.csis.org/ (301)
Info::
WWW normalization redirect

https://csis.org

66 ms · HTTP/1.1

301

https://www.csis.org/

113 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://csis.org30166 msHTTP/1.1cloudflare
2https://www.csis.org/200113 msHTTP/1.1cloudflare

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 2606:4700:10::6814:2698, 2606:4700:10::ac42:909c
Got: 17 ms connect
IPv6 Ready
AAAA Records 2606:4700:10::6814:2698, 2606:4700:10::ac42:909c Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 21 URLs
PASS
robots.txt present, sitemap with 21 URLs
Info::
robots.txt is present
Got: 2120 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 21 entries
Info::
Sitemap index with 21 child sitemaps
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

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 2120 B Sitemaps referenced 0 User-agents *, Bytespider Blocking No — crawling allowed
#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed


Allow: /*?page=
Disallow: /search
Disallow: /*?

# Bots
User-agent: Bytespider
Disallow: /
sitemap.xml 200 OK
Type Sitemap Index URLs 21 entries Valid XML Yes
Child Sitemaps:
A+
HTTP Probe Timing
Total 100 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.
16 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.
101 ms
Total Time Total request time from DNS lookup through full response.
101 ms

Connection waterfall

DNS Lookup 31 ms TCP Connect 16 ms TLS Handshake 22 ms Server Processing 31 ms Content Transfer 0 ms
A+
CDN & Delivery
Cloudflare (HIT)
PASS
Cloudflare (HIT)
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: 9eff75f0adc23cb0-CDG
Info::
CDN cache status: HIT
CDN Detected: Cloudflare
Provider Cloudflare Cache Status HIT Evidence cf-ray: 9eff75f0adc23cb0-CDG
Domain Intelligence
Domain intelligence data not available
INFO
Domain intelligence data not available

RDAP and WHOIS lookup both failed

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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