What technology does which.co.uk use?

which.co.uk is built with Bootstrap, Google Analytics, Google Ads, Apache.

Is which.co.uk secure (HTTPS)?

Yes. which.co.uk uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 25, 2026.

Who hosts which.co.uk?

which.co.uk is hosted on AWS, behind CloudFront CDN.

What is which.co.uk's SEO score?

which.co.uk scored 90/100 for SEO in the latest analysis (excellent).

What is which.co.uk's overall website score?

which.co.uk has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.

Is which.co.uk hiring?

which.co.uk has a careers page; check it directly for current openings.

which.co.uk

Which? | Expert testing, reviews and advice - Which?

Last scanned Jul 22, 2026, 8:11 PM · 1 view

Overall score

Great

Summary

Which? works for you reviewing products and services, so that you make the best purchase decisions for your needs. This website uses Apache hosted on AWS behind CloudFront CDN. SEO is excellent (90/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance fair (50/100). Top issue: No H1 heading found.

Which? works for you reviewing products and services, so that you make the best purchase decisions for your needs.

United States

Hosted on AWS

Top issues to fix

4 issues found · 2 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
1 broken link on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

1 issue(s) found

Performance

810 ms

Security

HTTPS & header checks

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Which? works for you reviewing products and services, so that you make the best purchase decisions for your needs.

Contact

Email, phone, and address published on this site's own pages.

Email: support@which.co.uk

Meta tags

Title: Which? | Expert testing, reviews and advice - Which?
Description: Which? works for you reviewing products and services, so that you make the best purchase decisions for your needs.
Canonical: https://www.which.co.uk
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1
Robots meta: index, follow, max-image-preview:large
Manifest: https://www.which.co.uk/static/deliver/manifest.json

Technologies

Detected frameworks, languages, and tools.

Bootstrap Google Analytics Google Ads Apache

Hosting & CDN

Hosting provider: AWS
CDN provider: CloudFront
IP address: 18.67.195.115
ASN: AS16509 (AMAZON-02 - Amazon.com, Inc., US)

DNS records

Type	Value
A	18.67.195.115 18.67.195.44 18.67.195.117 18.67.195.30
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Amazon
Subject: *.which.co.uk
Valid from: Jun 11, 2026
Valid to: Dec 25, 2026
Days until expiry: 156
SAN domains: *.which.co.uk, consumers-association.co.uk, which-compare.com, which.uk, whichbestbuys.com, whichlegalservice.co.uk, whichswitch.com, whichswitch.co.uk, whichwills.com, whichtravel.com, whichlegalservices.co.uk, whichlegal.com, whichcampaigns.co.uk, whichawards.co.uk, consumers-association.org.uk, whichtraders.co.uk, whichreviews.co.uk, which.org.uk, whichlegalservice.com, whichcompare.com, *.green.which.co.uk, which-money.co.uk, whichtravel.co.uk, which-trustedtrader.co.uk, whichconnect.com, consumersassociation.uk, consumers-association.uk, whichtraders.com, whichtrustedtraders.co.uk, consumers-association.org, whichholiday.co.uk, which.co.uk, whichtrustedtraders.com, whichmoney.co.uk, consumersassociation.co.uk, *.which.com, whichtrustedtrader.co.uk, which.com, whichcomputing.com, whichcomputing.co.uk, *.internal.which.co.uk, which-advice.co.uk, which-compare.co.uk, whichonline.co.uk, whichcar.com, whichgardening.co.uk, whichbestbuy.co.uk, whichmagazine.co.uk, which-advice.com, whichmagazine.org.uk, whichgardening.com, whichbestbuy.com, whichcompare.co.uk, whichlegal.co.uk, whichtrustedtrader.com, whichconnectsurvey.co.uk, whichfinancialservices.co.uk, whichconnect.co.uk, consumersassociation.org.uk

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyEnabled
Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 0 · H2 46 · H3 19

Links

648 internal · 62 external · 1 broken

Images

62 total · 0 missing alt

Scripts / Styles

40 scripts · 4 stylesheets

JS / CSS size

3.6 MB · 613 KB

Page size

314 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 30
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

No H1 heading found

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL: https://which.co.uk
Final URL: https://www.which.co.uk/
HTTP status: 200
HTTP version: HTTP/2
Response time: 804 ms
HTML size: 314 KB
Redirect chain: https://which.co.uk → https://www.which.co.uk/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does which.co.uk use?: which.co.uk is built with Bootstrap, Google Analytics, Google Ads, Apache.
Is which.co.uk secure (HTTPS)?: Yes. which.co.uk uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 25, 2026.
Who hosts which.co.uk?: which.co.uk is hosted on AWS, behind CloudFront CDN.
What is which.co.uk's SEO score?: which.co.uk scored 90/100 for SEO in the latest analysis (excellent).
What is which.co.uk's overall website score?: which.co.uk has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.
Is which.co.uk hiring?: which.co.uk has a careers page; check it directly for current openings.

Top issues to fix

Organization

Contact

Meta tags

OpenGraph & Twitter Card

Technologies

Hosting & CDN

DNS records

TLS / SSL certificate

Security headers

Content & assets

Robots.txt & Sitemap

SEO issues

Accessibility issues

Careers

Scan details

Related websites

Frequently asked questions