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virtualtelescope.eu

Home - The Virtual Telescope Project 2.0

Last scanned Aug 24, 2026, 1:23 PM

68

Overall score

Fair

Summary

Home of the Virtual Telescope Project, an advanced robotic facility offering true real-time observations of the Universe with remotely controlled telescopes. This website uses WordPress. SEO is good (80/100) and accessibility is good (75/100). Security scores poor (25/100) and performance excellent (90/100). Top issue: No H1 heading found.

Home of the Virtual Telescope Project, an advanced robotic facility offering true real-time observations of the Universe with remotely controlled telescopes

Top issues to fix

9 issues found · 3 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • 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.

  • robots.txt not found

    SEO

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

+3 more issues — details in the sections below.

80

SEO

3 issue(s) found

90

Performance

2.02 s

25

Security

HTTPS & header checks

75

Accessibility

2 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.

Home of the Virtual Telescope Project, an advanced robotic facility offering true real-time observations of the Universe with remotely controlled telescopes

X (Twitter)FacebookX (Twitter)

Meta tags

Title
Home - The Virtual Telescope Project 2.0
Description
Home of the Virtual Telescope Project, an advanced robotic facility offering true real-time observations of the Universe with remotely controlled telescopes
Canonical
https://www.virtualtelescope.eu/
Language
en-US
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Home - The Virtual Telescope Project 2.0
og:description
Home of the Virtual Telescope Project, an advanced robotic facility offering true real-time observations of the Universe with remotely controlled telescopes
og:type
website
og:url
https://www.virtualtelescope.eu/

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

PHPWordPressjQueryGoogle AnalyticsGoogle AdsMeta PixelNginx

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

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

TLS / SSL certificate

Version
TLS 1.3
Issuer
DigiCert Inc
Subject
www.virtualtelescope.eu
Valid from
Jul 30, 2026
Valid to
Feb 13, 2027
Days until expiry
172
SAN domains
www.virtualtelescope.eu, virtualtelescope.eu

Security headers

  • Strict-Transport-SecurityMissing
  • 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 2 · H3 9

Links

73 internal · 9 external · 20 broken

Images

14 total · 4 missing alt

Scripts / Styles

32 scripts · 9 stylesheets

JS / CSS size

14.0 KB · 21.9 KB

Page size

89.9 KB

Robots.txt & Sitemap

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

SEO issues

  • No H1 heading found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • More than 20% of images are missing alt text
  • No H1 heading found

Scan details

Requested URL
https://virtualtelescope.eu
Final URL
https://www.virtualtelescope.eu/
HTTP status
200
HTTP version
HTTP/2
Response time
2.02 s
HTML size
89.9 KB
Redirect chain
https://virtualtelescope.eu → https://www.virtualtelescope.eu/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does virtualtelescope.eu use?
virtualtelescope.eu is built with PHP, WordPress, jQuery, Google Analytics, Google Ads, Meta Pixel, Nginx.
Is virtualtelescope.eu secure (HTTPS)?
Yes. virtualtelescope.eu uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Feb 13, 2027.
Who hosts virtualtelescope.eu?
Hosting provider information for virtualtelescope.eu is not available yet.
What is virtualtelescope.eu's SEO score?
virtualtelescope.eu scored 80/100 for SEO in the latest analysis (great).
What is virtualtelescope.eu's overall website score?
virtualtelescope.eu has an overall SiteGraph score of 68/100, combining SEO, performance, security, and accessibility.