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bas.ac.uk

Homepage - British Antarctic Survey

Last scanned Aug 3, 2026, 11:00 AM · 12 views

85

Overall score

Great

Summary

Uncovering the secrets of Earth's polar and frozen regions - from the depths of the oceans to the inner edge of space. This website uses WordPress behind CloudFront CDN. SEO is excellent (90/100) and accessibility is good (85/100). Security scores good (75/100) and performance excellent (90/100). Top issue: robots.txt not found.

Uncovering the secrets of Earth's polar and frozen regions - from the depths of the oceans to the inner edge of space.

Top issues to fix

7 issues found · 1 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • More than 20% of images are missing alt text

    Accessibility

    Add alt attributes to the remaining images (use alt="" for purely decorative ones).

+1 more issue — details in the sections below.

90

SEO

2 issue(s) found

90

Performance

1.07 s

75

Security

HTTPS & header checks

85

Accessibility

1 issue(s) found

Score history

-3 overall since Jul 26, 2026

Overall
85
SEO
90
Security
75
Performance
90
Accessibility
85

Organization

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

Uncovering the secrets of Earth's polar and frozen regions - from the depths of the oceans to the inner edge of space.

FacebookInstagramYouTubeLinkedInYouTubeInstagram

Meta tags

Title
Homepage - British Antarctic Survey
Description
Uncovering the secrets of Earth's polar and frozen regions - from the depths of the oceans to the inner edge of space.
Canonical
https://www.bas.ac.uk/
Language
en-US
Charset
utf-8
Viewport
width=device-width, initial-scale=1, viewport-fit=cover
Robots meta
index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Homepage - British Antarctic Survey
og:description
Uncovering the secrets of Earth's polar and frozen regions - from the depths of the oceans to the inner edge of space.
og:type
website
og:url
https://www.bas.ac.uk/

Twitter Card

twitter:card
summary_large_image
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

WordPressGoogle AnalyticsNginx

Hosting & CDN

Hosting provider
—
CDN provider
CloudFront
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
bas.ac.uk
Valid from
Nov 12, 2025
Valid to
Dec 11, 2026
Days until expiry
130
SAN domains
bas.ac.uk, www.bas.ac.uk

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 8 · H3 19

Links

60 internal · 12 external · 20 broken

Images

33 total · 7 missing alt

Scripts / Styles

17 scripts · 5 stylesheets

JS / CSS size

7.5 KB · 44.7 KB

Page size

118 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • More than 20% of images are missing alt text

Scan details

Requested URL
https://bas.ac.uk
Final URL
https://www.bas.ac.uk/
HTTP status
200
HTTP version
HTTP/2
Response time
1.06 s
HTML size
118 KB
Redirect chain
https://bas.ac.uk → https://www.bas.ac.uk/

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Frequently asked questions

What technology does bas.ac.uk use?
bas.ac.uk is built with WordPress, Google Analytics, Nginx.
Is bas.ac.uk secure (HTTPS)?
Yes. bas.ac.uk uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 11, 2026.
Who hosts bas.ac.uk?
Hosting provider information for bas.ac.uk is not available yet.
What is bas.ac.uk's SEO score?
bas.ac.uk scored 90/100 for SEO in the latest analysis (excellent).
What is bas.ac.uk's overall website score?
bas.ac.uk has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
Has bas.ac.uk's score changed over time?
bas.ac.uk's overall score has declined by 3 points (from 88 to 85) since Jul 26, 2026.