esa.int
European Space Agency
Last scanned Jul 21, 2026, 11:37 AM
Overall score
Fair
Top issues to fix
9 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+3 more issues — details in the sections below.
Summary
The European Space Agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science. This website uses jQuery hosted on Fastly behind Fastly CDN. SEO is fair (65/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance good (80/100). Top issue: Meta description longer than 160 characters.
SEO
5 issue(s) found
Performance
121 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- European Space Agency
- Description
- The European Space Agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- www.esa.int
- Valid from
- Nov 3, 2025
- Valid to
- Nov 3, 2026
- Days until expiry
- 105
- SAN domains
- www.esa.int
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 0 · H2 12 · H3 95
Links
201 internal · 28 external · 2 broken
Images
184 total · 0 missing alt
Scripts / Styles
5 scripts · 4 stylesheets
JS / CSS size
207 KB · 323 KB
Page size
55.5 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 20
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Careers
Scan details
- Requested URL
- https://esa.int
- Final URL
- https://www.esa.int/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 120 ms
- HTML size
- 55.5 KB
- Redirect chain
- https://esa.int → https://www.esa.int/
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Frequently asked questions
- What technology does esa.int use?
- esa.int is built with jQuery.
- Is esa.int secure (HTTPS)?
- Yes. esa.int uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Nov 3, 2026.
- Who hosts esa.int?
- esa.int is hosted on Fastly, behind Fastly CDN.
- What is esa.int's SEO score?
- esa.int scored 65/100 for SEO in the latest analysis (fair).
- What is esa.int's overall website score?
- esa.int has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.
- Is esa.int hiring?
- Yes. esa.int has 13 open roles listed on their careers page.
OpenGraph & Twitter Card
OpenGraph
Twitter Card