Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Probed from Madrid, Spain

200 OK

Checks

9 PASS 7 REVIEW 1 FIX

CDN & Delivery

Action

No CDN detected

FIX

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.

DNS Records

4 A records, 24 ms lookup

REVIEW

4 A records, 24 ms lookup

Resolves to 4 IPv4 address(es)

Got: 151.101.193.55, 151.101.1.55, 151.101.129.55, 151.101.65.55

No IPv6 (AAAA) records

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: m.sni.global.fastly.net

No NS records found

No MX records — email not configured via DNS

No SPF record found in TXT records

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

DNS resolution time: 24 ms

Got: 24 ms

A	151.101.193.55, 151.101.1.55, 151.101.129.55, 151.101.65.55
AAAA	—
CNAME	m.sni.global.fastly.net
NS	—
MX	—
TXT	—
CAA	Lookup not available with standard resolver

Resolved in 24 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

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)

DNSSEC

Unsigned (DNSSEC not deployed)

REVIEW

Unsigned (DNSSEC not deployed)

DNSSEC is not deployed

The zone is not DNSSEC-signed. Users on validating resolvers (Cloudflare 1.1.1.1, Quad9 9.9.9.9, growing default in mobile resolvers) get no protection against DNS spoofing for this domain. Most registrars now offer DNSSEC at a single click; consider enabling it for sites where authenticity matters (banking, healthcare, government).

CAA Records

No CAA records (any CA may issue certificates)

REVIEW

No CAA records (any CA may issue certificates)

No CAA records published

Without CAA records, any publicly-trusted CA can issue certificates for this domain. Adding a CAA record (`yourdomain. IN CAA 0 issue "letsencrypt.org"`) restricts issuance to CAs you authorize. Required by CAB Forum baseline since 2017; the default of 'any CA' is widely supported but is the broader attack surface for issuance fraud.

Reverse DNS

Action

0/4 IPs match cert SAN

REVIEW

0/4 IPs match cert SAN

PTR lookup failed for 151.101.193.55: lookup 151.101.193.55: no such host

No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.

PTR lookup failed for 151.101.1.55: lookup 151.101.1.55: no such host

No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.

PTR lookup failed for 151.101.129.55: lookup 151.101.129.55: no such host

No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.

PTR lookup failed for 151.101.65.55: lookup 151.101.65.55: no such host

No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.

IPv6 Readiness

Action

No IPv6 support

REVIEW

No IPv6 support

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

TLS Certificate Expiry & Recommendations

38 days until leaf cert expires — 2 issues to address

REVIEW

Certificate validity

days left

0d 30d 60d 90d+

Recommended actions

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

Operational Status Page

No status page link detected

REVIEW

No status page link detected

No operational status page link detected

Status pages communicate planned maintenance and incidents to users -- a hallmark of operationally-mature services. Most SaaS teams publish one via Atlassian Statuspage, Instatus, BetterUptime, or a self-hosted Cachet. Smaller sites legitimately don't need one; flagged as Info, not a failure.

A+

Subdomain Takeover

No subdomain takeover risk detected

PASS

No subdomain takeover risk detected

CNAME does not point at a known takeover-able service

A+

Multi-Resolver DNS Speed

Mean 22ms across 3 resolvers (spread 38ms)

PASS

Mean 22ms across 3 resolvers (spread 38ms)

Quad9: 0ms

Got: 0ms via 9.9.9.9:53

Google: 29ms

Got: 29ms via 8.8.8.8:53

Cloudflare: 38ms

Got: 38ms via 1.1.1.1:53

A+

Redirect Chain

No redirects — direct access

PASS

No redirects — direct access

Got: https://Www.uswitch.com/broadband/

https://Www.uswitch.com/broadband/

7 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://Www.uswitch.com/broadband/	200	7 ms	HTTP/1.1

A+

Crawlability

robots.txt present, sitemap with 1694 URLs

PASS

robots.txt present, sitemap with 1694 URLs

robots.txt is present

Got: 4728 bytes

sitemap.xml is present

sitemap.xml is valid XML

sitemap.xml contains 1694 entries

robots.txt references sitemap

robots.txt 200 OK

Size 4728 B Sitemaps referenced 2 User-agents * Blocking No — crawling allowed

Sitemap: https://www.uswitch.com/sitemap.xml
Sitemap: https://www.uswitch.com/news.xml
User-agent: *
Disallow: */feed/*
Disallow: */RK=1/RS=*
Disallow: /_img/
Disallow: /*.doc*
Disallow: /*.pdf*
Disallow: /clk/*
Disallow: /account/social-signin/*
Disallow: /account/preferences
Disallow: /account/signin
Disallow: /apple-app-site-association
Disallow: /blog/author/*/page/*
Disallow: /blog/category/*/*/page/*
Disallow: /blog/category/*/page/*
Disallow: /blog/tag/*/page/*
Disallow: /broadband/_ajax/
Disallow: /broadband/checkout/*
Disallow: /broadband/clickout/
Disallow: /broadband/compare/*/*/*.png
Disallow: /broadband/compare/fibre_optic_v2/
Disallow: /broadband/packages/*/*/*.png
Disallow: /broadband/postcode_checker/results
Disallow: /broadband/products/*/*/*.png
Disallow: /broadband/providers/*/*/*.png
Disallow: /car-insurance/ppc/*
Disallow: /car-insurance/quote-forms/
Disallow: /car-insurance/quote-forms/*
Disallow: /Careers/EmailToAFriend.aspx
Disallow: /careers/error.aspx
Disallow: /category/*
Disallow: /cornwall-together
Disallow: /credit-cards/*?*
Disallow: /credit-cards/apply
Disallow: /credit-cards/customer-details/
Disallow: /credit-cards/record
Disallow: /credit-cards/redirect/
Disallow: /credit-cards/track
Disallow: /credit-reports/redirect/
Disallow: /current-accounts/ca-apply/
Disallow: /current-accounts/redirect/
Disallow: /gas-electricity/campaigns/uswitch-uwin/*
Disallow: /gas-electricity/customer-services/
Disallow: /gas-electricity/drop/
Disallow: /gas-electricity/journey/*
Disallow: /gas-electricity/solar/*
Disallow: /gas-electricity/thank-you/*
Disallow: /gas-electricity/news/wp-login.php?redirect_to=*
Disallow: /gas-electricity/ppc-rev/new/*
Disallow: /gas-electricity/zoopla-rev/new/energy/*
Disallow: /home-insurance/quotes
Disallow: /home-insurance/quotes/recall
Disallow: /home-insurance/quotes/Timeout
Disallow: /HomePage/
Disallow: /Homepage/
Disallow: /homepage/
Disallow: /links/
Disallow: /loans*?*
Disallow: /loans/*?*
Disallow: /loans/redirect/
Disallow: /loans/service/gateway/
Disallow: /loans/service/sl-gateway/
Disallow: /media-centre/*/*/page/*
Disallow: /media-centre/author/*/page/*
Disallow: /media-centre/category/*/page/*
Disallow: /media-centre/page/*
Disallow: /media-centre/press-releases/page/*
Disallow: /mobiles/_ajax/
Disallow: /mobiles/api/
Disallow: /mobiles/contract_deal/*
Disallow: /mobiles/deal/
Disallow: /mobiles/deal-group/
Disallow: /mobiles/deals/buy/
Disallow: /mobiles/go/
Disallow: /mobiles/grouped/contract_deal/*
Disallow: /mobiles/pay_as_you_go_deal/*
Disallow: /mobiles/service/manufacturers/*
Disallow: /mobiles/sim_only_deal/*
Disallow: /mobiles/tablet_deal/*
Disallow: /mortgages/redirect/
Disallow: /mortgages/remortgages
Disallow: /Popups/
Disallow: /press-room/press-releases/
Disallow: /redirect/facebook/
Disallow: /redirect/twitter/
Disallow: /savings-isa/customer-details/
Disallow: /search/
Disallow: /sif/zpg.gif
Disallow: /siteresources/
Disallow: /siteresources/*?*
Disallow: /siteresources/advert.ashx
Disallow: /tag/*
Disallow: /tv/compare/*/*/*.png
Disallow: /tv/go/
Disallow: /tv/news/*/*&page*
Disallow: /tv/packages/*/*/*.png
Disallow: /tv/postcode_checker/results
Disallow: /tv/providers/*/*/*.png
Disallow: /wpcmsapi/get_category_posts/
Disallow: /health-insurance/quote/*
Disallow: /life-insurance/quote/*
Disallow: /mobiles/sim_only_deal/
Disallow: /mobiles/sim-only-deal/
Disallow: /mobiles/graphql/*

Allow: /credit-cards/*?*ppc*

################################################
#                                              #
#                                              #
#                                              #
#                                              #
#           .,;;,.           .,;;;.            #
#           cXWWXc           cXWWXc.           #
#           cNMMNc           cNMMNl.           #
#           cNMMNc           cNMMNl.           #
#           cNMMNc           cNMMNl.           #
#           cNMMNc           cNMMNl.           #
#           cNMMNc           cNMMNl.           #
#           cNMMNc           cNMMNl.           #
#           cNMMNc           cNMMNl.           #
#           cNMMNc           cNMMNl.           #
#           cNMMNc.          cNMMNl.           #
#           ;KMMWd.         .dWMMK:            #
#           .dWMMNd'..    .'dXMMWx.            #
#            .dXMMWXOxxdxxOXWMMNd'             #
#             .,oOXWWMMMM#WWX0d;.              #
#                .';:clllcc;'.                 #
#                                              #
#                                              #
#                                              #
#                                              #
################################################

sitemap.xml 200 OK

Type URL Set URLs 1694 entries Valid XML Yes

Sample URLs:

URL Variants

www/non-www, trailing slash, HTTP→HTTPS

PASS

www/non-www, trailing slash, HTTP→HTTPS

HTTP→HTTPS redirect uses 302 instead of 301

Got: 302 temporary redirect Expected: 301 permanent redirect

www / non-www

https://www.Www.uswitch.com/broadband/

200https://Www.uswitch.com/broadband/

Trailing Slash

200https://Www.uswitch.com/broadband/

301https://Www.uswitch.com/broadband

HTTP → HTTPS

308http://Www.uswitch.com/broadband/ → https://www.uswitch.com/broadband/

Use 301 (permanent) instead of 302 (temporary)

A+

Domain Intelligence

uswitch.com — via EuroDNS S.A., 27 years, 7 months old, hosted on Fastly

PASS

uswitch.com — via EuroDNS S.A., 27 years, 7 months old, hosted on Fastly

Domain registered until Feb 2, 2029 (2 years, 9 months remaining)

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.

Registrar: EuroDNS S.A.

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.

Hosting: Fastly

Got: AS54113

Domain expiry

994 days

February 2, 2029

SSL certificate

38 days

Issued by Let's Encrypt

Domain age

27 years, 7 months

Registered February 2, 1999

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.129.55

Registrar

EuroDNS S.A.

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 EuroDNS S.A.

Created February 2, 1999 (27 years, 7 months ago)

Expires February 2, 2029 (2 years, 9 months)

Last Updated April 30, 2026

Name Servers ns-1494.awsdns-58.org, ns-1584.awsdns-06.co.uk, ns-279.awsdns-34.com, ns-670.awsdns-19.net

DNSSEC Not enabled

Hosting

IP Address 151.101.129.55

ASN AS54113 (FASTLY - Fastly, Inc., US)

Provider Fastly

Data source: rdap (0.4s)

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 73 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

59 ms

TCP Connect

1 ms

TLS Handshake

3 ms

Time to First Byte

64 ms

Total Time

73 ms

Connection waterfall

DNS Lookup 59 ms TCP Connect 1 ms TLS Handshake 3 ms Server Processing 1 ms Content Transfer 9 ms

A+

CDN Cache Observability

Cache state: Age=45521s

PASS

Cache state: Age=45521s

CDN cache state observable via 1 header(s)

Got: age=45521

A+

Health Check Endpoint

Auth-protected health endpoint at https://Www.uswitch.com/health (HTTP 403)

PASS

Auth-protected health endpoint at https://Www.uswitch.com/health (HTTP 403)

Auth-protected health endpoint exposed at https://Www.uswitch.com/health

Got: https://Www.uswitch.com/health

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.