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labelstud.io

Open Source Data Labeling and AI Evaluation | Label Studio

Last scanned Jul 26, 2026, 11:49 AM · 1 view

85

Overall score

Great

Summary

Multi-modal data labeling and annotation platform for agent traces, LLM evals, RLHF, computer vision, document AI, NLP, audio transcription, and more. This website uses Astro behind Netlify CDN. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (90/100). Top issue: Missing canonical link.

Multi-modal data labeling and annotation platform for agent traces, LLM evals, RLHF, computer vision, document AI, NLP, audio transcription, and more.

Top issues to fix

8 issues found · 1 high priority

  • 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 canonical link

    SEO

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

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • No structured data (JSON-LD) found

    SEO

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

  • robots.txt not found

    SEO

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

+2 more issues — details in the sections below.

70

SEO

5 issue(s) found

90

Performance

74 ms

85

Security

HTTPS & header checks

100

Accessibility

0 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.

Multi-modal data labeling and annotation platform for agent traces, LLM evals, RLHF, computer vision, document AI, NLP, audio transcription, and more.

X (Twitter)LinkedInYouTube

Meta tags

Title
Open Source Data Labeling and AI Evaluation | Label Studio
Description
Multi-modal data labeling and annotation platform for agent traces, LLM evals, RLHF, computer vision, document AI, NLP, audio transcription, and more.
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest
https://labelstud.io/site.webmanifest

OpenGraph & Twitter Card

OpenGraph

og:title
Open Source Data Labeling and AI Evaluation | Label Studio
og:description
Multi-modal data labeling and annotation platform for agent traces, LLM evals, RLHF, computer vision, document AI, NLP, audio transcription, and more.
og:type
—
og:url
—

Twitter Card

twitter:card
summary_large_image
twitter:title
Open Source Data Labeling and AI Evaluation | Label Studio
twitter:description
Multi-modal data labeling and annotation platform for agent traces, LLM evals, RLHF, computer vision, document AI, NLP, audio transcription, and more.

Technologies

Detected frameworks, languages, and tools.

Astro

Hosting & CDN

Hosting provider
—
CDN provider
Netlify
IP address
—
ASN
—

DNS records

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

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
labelstud.io
Valid from
Jul 28, 2026
Valid to
Oct 26, 2026
Days until expiry
89
SAN domains
labelstud.io, www.labelstud.io

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 4 · H2 11 · H3 8

Links

26 internal · 19 external · 20 broken

Images

33 total · 0 missing alt

Scripts / Styles

14 scripts · 3 stylesheets

JS / CSS size

5.6 KB · 15.5 KB

Page size

418 KB

Robots.txt & Sitemap

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

SEO issues

  • Missing canonical link
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://labelstud.io
Final URL
https://labelstud.io
HTTP status
200
HTTP version
HTTP/2
Response time
66 ms
HTML size
418 KB
Redirect chain
https://labelstud.io

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Frequently asked questions

What technology does labelstud.io use?
labelstud.io is built with Astro.
Is labelstud.io secure (HTTPS)?
Yes. labelstud.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 26, 2026.
Who hosts labelstud.io?
Hosting provider information for labelstud.io is not available yet.
What is labelstud.io's SEO score?
labelstud.io scored 70/100 for SEO in the latest analysis (fair).
What is labelstud.io's overall website score?
labelstud.io has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.