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SGSiteGraph

sondehub.org

SondeHub Tracker

Last scanned Jul 26, 2026, 4:17 PM · 1 view

71

Overall score

Fair

Summary

Live tracking of radiosonde flights. This website uses jQuery behind CloudFront CDN. SEO is fair (60/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

Live tracking of radiosonde flights. Data via SondeHub v2. Includes weather overlay, predictions, and access to historic radiosonde flights on sondehub.

Top issues to fix

12 issues found · 4 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.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • 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.

+6 more issues — details in the sections below.

60

SEO

6 issue(s) found

100

Performance

639 ms

65

Security

HTTPS & header checks

60

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.

Live tracking of radiosonde flights. Data via SondeHub v2. Includes weather overlay, predictions, and access to historic radiosonde flights on sondehub.

YouTube

Contact

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

Meta tags

Title
SondeHub Tracker
Description
Live tracking of radiosonde flights. Data via SondeHub v2. Includes weather overlay, predictions, and access to historic radiosonde flights on sondehub.
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width, user-scalable=no, initial-scale=1, maximum-scale=1
Robots meta
Manifest
https://sondehub.org/manifest.json

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
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
CloudFront
IP address
—
ASN
—

DNS records

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

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
v2.sondehub.org
Valid from
May 8, 2026
Valid to
Nov 21, 2026
Days until expiry
115
SAN domains
v2.sondehub.org, *.v2.sondehub.org, sondehub.org, *.sondehub.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 0 · H2 5 · H3 4

Links

4 internal · 17 external · 20 broken

Images

9 total · 9 missing alt

Scripts / Styles

19 scripts · 8 stylesheets

JS / CSS size

0 B · 0 B

Page size

36.6 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 H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text
  • No H1 heading found

Scan details

Requested URL
https://sondehub.org
Final URL
https://sondehub.org
HTTP status
200
HTTP version
HTTP/2
Response time
639 ms
HTML size
36.6 KB
Redirect chain
https://sondehub.org

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does sondehub.org use?
sondehub.org is built with jQuery.
Is sondehub.org secure (HTTPS)?
Yes. sondehub.org uses TLS 1.3 with a certificate issued by Amazon, valid until Nov 21, 2026.
Who hosts sondehub.org?
Hosting provider information for sondehub.org is not available yet.
What is sondehub.org's SEO score?
sondehub.org scored 60/100 for SEO in the latest analysis (fair).
What is sondehub.org's overall website score?
sondehub.org has an overall SiteGraph score of 71/100, combining SEO, performance, security, and accessibility.