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SGSiteGraph

schemastore.org

JSON Schema Store

Last scanned Jul 26, 2026, 5:17 AM · 2 views

82

Overall score

Great

Summary

JSON Schemas for common JSON file formats. This website is hosted on Fastly. SEO is good (75/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

JSON Schemas for common JSON file formats

United States
Hosted on Fastly

Top issues to fix

10 issues found · 2 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.

  • 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.

  • 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.

+4 more issues — details in the sections below.

75

SEO

4 issue(s) found

100

Performance

405 ms

65

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.

JSON Schemas for common JSON file formats

Meta tags

Title
JSON Schema Store
Description
JSON Schemas for common JSON file formats
Canonical
Language
Charset
utf-8
Viewport
initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
JSON Schema Store
og:description
JSON Schemas for common JSON file formats
og:type
website
og:url
http://schemastore.org

Twitter Card

twitter:card
summary
twitter:title
JSON Schema Store
twitter:description
JSON Schemas for common JSON file formats

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
185.199.111.153
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 185.199.111.153
  • 185.199.108.153
  • 185.199.110.153
  • 185.199.109.153
AAAA
  • 2606:50c0:8000::153
  • 2606:50c0:8001::153
  • 2606:50c0:8003::153
  • 2606:50c0:8002::153
MX—
TXT—
NS—
CAA
  • 0 issuewild "digicert.com"
  • 0 issue "digicert.com"
  • 0 issuewild "sectigo.com"
  • 0 issue "sectigo.com"
  • 0 issuewild "letsencrypt.org"
  • 0 issue "letsencrypt.org"
CNAME
  • schemastore.github.io
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
www.schemastore.org
Valid from
May 31, 2026
Valid to
Aug 29, 2026
Days until expiry
33
SAN domains
schemastore.org, www.schemastore.org

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 1 · H2 0 · H3 8

Links

2 internal · 11 external · 3 broken

Images

5 total · 0 missing alt

Scripts / Styles

1 scripts · 1 stylesheets

JS / CSS size

1.6 KB · 2.7 KB

Page size

8.3 KB

Robots.txt & Sitemap

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

SEO issues

  • Missing canonical link
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Missing <html lang> attribute

Scan details

Requested URL
https://schemastore.org
Final URL
https://www.schemastore.org/
HTTP status
200
HTTP version
HTTP/2
Response time
405 ms
HTML size
8.3 KB
Redirect chain
https://schemastore.org → https://www.schemastore.org/

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Frequently asked questions

What technology does schemastore.org use?
We did not detect any specific technologies for schemastore.org in the latest scan.
Is schemastore.org secure (HTTPS)?
Yes. schemastore.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 29, 2026.
Who hosts schemastore.org?
schemastore.org is hosted on Fastly, behind Fastly CDN.
What is schemastore.org's SEO score?
schemastore.org scored 75/100 for SEO in the latest analysis (fair).
What is schemastore.org's overall website score?
schemastore.org has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.