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SGSiteGraph

esa.int

European Space Agency

Last scanned Jul 29, 2026, 2:00 PM · 10 views

77

Overall score

Fair

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 behind Fastly CDN. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.

The European Space Agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science.

Top issues to fix

10 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.

  • 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.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

+4 more issues — details in the sections below.

60

SEO

6 issue(s) found

90

Performance

249 ms

75

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Score history

+1 overall since Jul 21, 2026

Overall
77
SEO
60
Security
75
Performance
90
Accessibility
90

Organization

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

The European Space Agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science.

FacebookInstagramLinkedInX (Twitter)YouTube

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

OpenGraph & Twitter Card

OpenGraph

og:title
European Space Agency
og:description
The European Space Agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science.
og:type
—
og:url
—

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

jQuery

Hosting & CDN

Hosting provider
—
CDN provider
Fastly
IP address
—
ASN
—

DNS records

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

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
97
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 6 · H3 44

Links

54 internal · 12 external · 20 broken

Images

93 total · 0 missing alt

Scripts / Styles

4 scripts · 4 stylesheets

JS / CSS size

706 B · 0 B

Page size

54.9 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
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
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://esa.int
Final URL
https://www.esa.int/
HTTP status
200
HTTP version
HTTP/2
Response time
248 ms
HTML size
54.9 KB
Redirect chain
https://esa.int → https://www.esa.int/

See something wrong on this report? Request a correction

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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?
Hosting provider information for esa.int is not available yet.
What is esa.int's SEO score?
esa.int scored 60/100 for SEO in the latest analysis (fair).
What is esa.int's overall website score?
esa.int has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
Has esa.int's score changed over time?
esa.int's overall score has improved by 1 point (from 76 to 77) since Jul 21, 2026.