languagetool.org
Free AI Grammar Checker - LanguageTool
Last scanned Jul 25, 2026, 6:25 AM · 2 views
Overall score
Excellent
Summary
Instantly check grammar, punctuation, and spelling errors with LanguageTool's AI-powered grammar checker. This website uses Google Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (90/100). Top issue: sitemap.xml not found.
LanguageTool
Instantly check grammar, punctuation, and spelling errors with LanguageTool's AI-powered grammar checker. Enhance your writing in over 30 languages with ease.
- United States
- Hosted on Cloudflare
Products & pricing
Product and pricing information published in this site's own structured data.
Tool
£100 GBP
Top issues to fix
6 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
1 broken link on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
1 issue(s) found
Performance
1.52 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
LanguageTool
Instantly check grammar, punctuation, and spelling errors with LanguageTool's AI-powered grammar checker. Enhance your writing in over 30 languages with ease.
- Founded
- Jan 1, 2003
Meta tags
- Title
- Free AI Grammar Checker - LanguageTool
- Description
- Instantly check grammar, punctuation, and spelling errors with LanguageTool's AI-powered grammar checker. Enhance your writing in over 30 languages with ease.
- Canonical
- https://languagetool.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://languagetool.org/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 172.64.151.199
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- languagetool.org
- Valid from
- Jul 18, 2026
- Valid to
- Oct 16, 2026
- Days until expiry
- 82
- SAN domains
- languagetool.org, *.languagetool.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 3 cookie(s) observed
Content & assets
Headings
H1 1 · H2 9 · H3 9
Links
48 internal · 15 external · 1 broken
Images
6 total · 0 missing alt
Scripts / Styles
18 scripts · 3 stylesheets
JS / CSS size
24.7 KB · 0 B
Page size
143 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 12
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://languagetool.org
- Final URL
- https://languagetool.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.52 s
- HTML size
- 143 KB
- Redirect chain
- https://languagetool.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does languagetool.org use?
- languagetool.org is built with Laravel, Google Analytics, Google Ads, TikTok Pixel.
- Is languagetool.org secure (HTTPS)?
- Yes. languagetool.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 16, 2026.
- Who hosts languagetool.org?
- languagetool.org is hosted on Cloudflare, behind Cloudflare CDN.
- What is languagetool.org's SEO score?
- languagetool.org scored 95/100 for SEO in the latest analysis (excellent).
- What is languagetool.org's overall website score?
- languagetool.org has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- What company operates languagetool.org?
- languagetool.org is operated by LanguageTool. Instantly check grammar, punctuation, and spelling errors with LanguageTool's AI-powered grammar checker. Enhance your writing in over 30 languages with ease.
- What products does languagetool.org offer?
- languagetool.org offers Tool.
- Is languagetool.org hiring?
- languagetool.org has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card