Skip to main content
SGSiteGraph

open-vsx.org

Open VSX Registry

Last scanned Jul 26, 2026, 5:17 AM · 1 view

91

Overall score

Excellent

Summary

Open VSX is an Eclipse open-source project and alternative to the Visual Studio Marketplace. This website is hosted on Fastly. SEO is good (75/100) and accessibility is excellent (90/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Missing canonical link.

Open VSX is an Eclipse open-source project and alternative to the Visual Studio Marketplace. It is deployed by the Eclipse Foundation at open-vsx.org.

United States
Hosted on Fastly

Top issues to fix

4 issues found · 1 high priority

  • 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.

  • TLS certificate expires in 20 days

    Security

    Renew soon or enable auto-renewal to avoid a browser-warning outage.

  • Missing canonical link

    SEO

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

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

75

SEO

3 issue(s) found

100

Performance

3 ms

100

Security

HTTPS & header checks

90

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.

Open VSX is an Eclipse open-source project and alternative to the Visual Studio Marketplace. It is deployed by the Eclipse Foundation at open-vsx.org.

LinkedInX (Twitter)

Contact

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

Source: https://open-vsx.org/extension/redhat/java

Meta tags

Title
Open VSX Registry
Description
Open VSX is an Eclipse open-source project and alternative to the Visual Studio Marketplace. It is deployed by the Eclipse Foundation at open-vsx.org.
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Open VSX Registry
og:description
Open VSX is an Eclipse open-source project and alternative to the Visual Studio Marketplace. It is deployed by the Eclipse Foundation at open-vsx.org.
og:type
website
og:url
https://open-vsx.org

Twitter Card

twitter:card
summary_large_image
twitter:title
Open VSX Registry
twitter:description
Open VSX is an Eclipse open-source project and alternative to the Visual Studio Marketplace. It is deployed by the Eclipse Foundation at open-vsx.org.

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
151.101.193.242
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 151.101.193.242
  • 151.101.1.242
  • 151.101.129.242
  • 151.101.65.242
AAAA—
MX
  • mail.eclipse.org
TXT
  • _yd0qtjemsx3qf79okf5br42q5rxxyu7
  • v=spf1 a:mail.eclipse.org mx -all
NS
  • ns-1147.awsdns-15.org
  • ns-1714.awsdns-22.co.uk
  • ns-761.awsdns-31.net
  • ns-361.awsdns-45.com
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Certainly
Subject
open-vsx.org
Valid from
Jul 18, 2026
Valid to
Aug 17, 2026
Days until expiry
20
SAN domains
open-vsx.org

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

11 internal · 7 external · 0 broken

Images

10 total · 0 missing alt

Scripts / Styles

4 scripts · 2 stylesheets

JS / CSS size

447 KB · 23.5 KB

Page size

20.0 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
1
sitemap.xml
Found
URLs in sitemap
16103

SEO issues

  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://open-vsx.org
Final URL
https://open-vsx.org
HTTP status
200
HTTP version
HTTP/2
Response time
3 ms
HTML size
20.0 KB
Redirect chain
https://open-vsx.org

See something wrong on this report? Request a correction

Related websites

Same hosting provider

literams.com

Litera | Legal Technology Solutions

100
nginxdrupal
Fastly· Fastly

showare.com

Live Entertainment & Venues Ticketing & POS | accesso

100
wordpressjquerybootstrap
Fastly· Cloudflare

foresee.com

Predictive Analytics for Customer Experience | Verint

100
wordpressnginxjquery
Fastly· Fastly

voicemod.net

Free Real Time Voice Changer for PC & Mac | Voicemod

100
wordpressapachejquery
Fastly· Fastly

researchandmarkets.com

Research and Markets - Market Research Reports - Welcome

100
Fastly· Fastly

hallensteins.co.nz

Hallensteins | Menswear NZ

100
nginxphpjquery
Fastly· Fastly

Frequently asked questions

What technology does open-vsx.org use?
We did not detect any specific technologies for open-vsx.org in the latest scan.
Is open-vsx.org secure (HTTPS)?
Yes. open-vsx.org uses TLS 1.3 with a certificate issued by Certainly, valid until Aug 17, 2026.
Who hosts open-vsx.org?
open-vsx.org is hosted on Fastly, behind Fastly CDN.
What is open-vsx.org's SEO score?
open-vsx.org scored 75/100 for SEO in the latest analysis (fair).
What is open-vsx.org's overall website score?
open-vsx.org has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.