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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
89
GRADE
B
FIX
0
REVIEW
2
PASS
7
INFO
0
Probed from Singapore, Singapore
301 Moved Permanently
Checks
9
7 PASS 2 REVIEW
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

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

Certificate validity

129
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 OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A
DNS Records
4 A records, 52 ms lookup
PASS
4 A records, 52 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 99.86.20.118, 99.86.20.69, 99.86.20.2, 99.86.20.123
Info::
No IPv6 (AAAA) records
Warning::
CNAME record at zone apex
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
Got: d2yaktdfa8m1mb.cloudfront.net
Info::
4 nameserver(s) configured
Got: ns-1182.awsdns-19.org, ns-2043.awsdns-63.co.uk, ns-77.awsdns-09.com, ns-829.awsdns-39.net
Info::
No MX records — email not configured via DNS
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 52 ms
Got: 52 ms
A99.86.20.118, 99.86.20.69, 99.86.20.2, 99.86.20.123
AAAA
CNAMEd2yaktdfa8m1mb.cloudfront.net
NSns-1182.awsdns-19.org, ns-2043.awsdns-63.co.uk, ns-77.awsdns-09.com, ns-829.awsdns-39.net
MX
TXT
CAALookup not available with standard resolver
Resolved in 52 ms

A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.

Why this matters

CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.

Learn more

RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.

Source: RFC 1034

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.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

A
Redirect Chain
1 redirect(s), 540 ms total
PASS
1 redirect(s), 540 ms total
Info::
Single redirect
Got: https://www.trainline.com → https://www.thetrainline.com/ (301)
Info::
Redirect overhead: 540 ms total
Got: 540 ms
Info::
Cross-domain redirect detected

https://www.trainline.com

63 ms · HTTP/1.1

301

https://www.thetrainline.com/

477 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.trainline.com30163 msHTTP/1.1CloudFront
2https://www.thetrainline.com/200477 msHTTP/1.1CloudFront

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 5292 URLs
PASS
robots.txt present, sitemap with 5292 URLs
Info::
robots.txt is present
Got: 5559 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 5292 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 5559 B Sitemaps referenced 49 User-agents *, AdsBot-Google, AdsBot-Google-Mobile Blocking No — crawling allowed
# If you're a robot, hello there and please have a good look around our website.

# If you're a human, we're chuffed you're checking out our robots.txt file. If you're into your SEO or a developer why not come work for us? Say hello at https://www.trainlinegroup.com/careers/en/.


User-agent: *


#Blocked parameters

Disallow: /news?page=*

Disallow: *?oriCode

Disallow: *?oricode

Disallow: /*lang=

Disallow: /*?cm=

Disallow: /live/*?*


#Blocked resources

Disallow: /RenderPDF.aspx*

Disallow: /SecureRenderPDF.aspx*

Disallow: /combinedmatrix.aspx

Disallow: /customerror.aspx

Disallow: /hotel/JavaScriptDisabled.aspx

Disallow: /hotel/UnsupportedBrowser.aspx

Disallow: /destinations/*.shtml

Disallow: /newpaymenterror.aspx

Disallow: /terms.aspx

Disallow: /m/api

Disallow: /api

Disallow: /login-service

Disallow: /version


#Blocked slugs

Disallow: /admin/

Disallow: /book/

Disallow: /dpi

Disallow: /graphql

Disallow: /seo/graphql

Disallow: /button_bar_pages/

Disallow: /buytickets

Disallow: /maintenance/

Disallow: /season/

Disallow: /tools/tunetool

Disallow: /my-account/

Disallow: /m/checkout

Disallow: /m/results

Disallow: /train-times/*/1

Disallow: /train-times/*/2

Disallow: /train-times/*/3

Disallow: /train-times/*/4

Disallow: /train-times/*/5

Disallow: /train-times/*/6

Disallow: /train-times/*/7

Disallow: /train-times/*/8

Disallow: /train-times/*/9

Disallow: /train-times/*/0

Disallow: /affiliate

Disallow: /unsupported-browser

Disallow: /diagnostics/

Disallow: /season-ticket/fare-selection?

Disallow: /content/lgl/*


User-agent: AdsBot-Google

Allow: /dpi

Disallow: *buytickets/datapassedin

Disallow: /api

Disallow: /graphql

Disallow: /seo/graphql

Disallow: /version

Disallow: /login-service

Disallow: /live/*?*

Disallow: /*?cm=

Disallow: /graphql


User-agent: AdsBot-Google-Mobile

Allow: /dpi

Disallow: /version

Disallow: /graphql

Disallow: /seo/graphql

Disallow: /login-service

Disallow: *buytickets/datapassedin

Disallow: /api

Disallow: /live/*?*

Disallow: /*?cm=

Disallow: /graphql


# Sitemaps

Sitemap: https://www.thetrainline.com/live/sitemap

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

Sitemap: https://www.thetrainline.com/sitemap-cms

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/cs/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/da/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/de/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/de-at/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/de-ch/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/en/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/en-us/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/es/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/fr/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/fr-ch/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/it/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/it-ch/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/nb/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/nl/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/pl/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/pt/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/pt-br/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/sv/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/vul/sitemaps/zh/trains/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ESS/de/station/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ESS/en/station/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ESS/es/station/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ESS/fr/station/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ESS/it/station/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ess/maps/com/bus/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ess/maps/de/bus/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ess/maps/es/bus/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ess/maps/fr/bus/sitemap.xml

Sitemap: https://www.thetrainline.com/content/ess/maps/it/bus/sitemap.xml

Sitemap: https://www.thetrainline.com/fr/cms-sitemap-fr

Sitemap: https://www.thetrainline.com/it/cms-sitemap

Sitemap: https://www.thetrainline.com/es/es-cms-sitemap

Sitemap: https://www.thetrainline.com/de/sitemap-cms

Sitemap: https://www.thetrainline.com/en/europe-cms-sitemap

Sitemap: https://www.thetrainline.com/nl/sitemap-cms

Sitemap: https://www.thetrainline.com/da/da-cms-sitemap

Sitemap: https://www.thetrainline.com/nb/no-cms-sitemap

Sitemap: https://www.thetrainline.com/pl/pl-sitemap-cms

Sitemap: https://www.thetrainline.com/sv/sv-cms-sitemap

Sitemap: https://www.thetrainline.com/pt-br/pt-br-cms-sitemap

Sitemap: https://www.thetrainline.com/de-at/de-at-cms-sitemap

Sitemap: https://www.thetrainline.com/de-ch/de-ch-cms-sitemap

Sitemap: https://www.thetrainline.com/fr-ch/fr-ch-cms-sitemap

Sitemap: https://www.thetrainline.com/en-us/us-cms-sitemap

Sitemap: https://www.thetrainline.com/pt/pt-cms-sitemap

Sitemap: https://www.thetrainline.com/it-ch/it-ch-cms-sitemap


A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.trainline.com/
301https://trainline.com/

Preferred variant: www

HTTP → HTTPS

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

Consistent

A+
Domain Intelligence
trainline.com — via CSC Corporate Domains, Inc., 29 years, 5 months old, hosted on AWS
PASS
trainline.com — via CSC Corporate Domains, Inc., 29 years, 5 months old, hosted on AWS
Info::
Domain registered until Mar 14, 2027 (11 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: CSC Corporate Domains, Inc.
Info::
Hosting: AWS
Got: AS16509
Domain expiry

271 days

March 14, 2027

SSL certificate

129 days

Issued by Amazon

Domain age

29 years, 5 months

Registered March 13, 1997

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

99.86.20.2

Registrar

CSC Corporate Domains, Inc.

Lock status unknown 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar CSC Corporate Domains, Inc.
Created March 13, 1997 (29 years, 5 months ago)
Expires March 14, 2027 (11 months)
Last Updated March 10, 2026
Name Servers addilyn.ns.cloudflare.com, jack.ns.cloudflare.com
DNSSEC Enabled
Hosting
IP Address 99.86.20.2
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.3s)
A+
HTTP Probe Timing
Total 82 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
53 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
2 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
5 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
82 ms
Total Time Total request time from DNS lookup through full response.
83 ms

Connection waterfall

DNS Lookup 53 ms TCP Connect 2 ms TLS Handshake 5 ms Server Processing 22 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: SIN3-P2)
Got: x-amz-cf-id: pTa29qgsyNpvLj3PjQsv8IR3xYM3Y9ilKg1oI9fa03dOEAuTa-La-g==
Info::
CDN cache status: Miss from cloudfront
CDN Detected: AWS CloudFront
Provider AWS CloudFront Cache Status Miss from cloudfront Evidence x-amz-cf-id: pTa29qgsyNpvLj3PjQsv8IR3xYM3Y9ilKg1oI9fa03dOEAuTa-La-g==
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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