sublearn.com
Learn Languages Through Real Content - SubLearn
Last scanned Aug 24, 2026, 1:21 PM · 2 views
Overall score
Great
Summary
Master any language with 103,000+ learning items: vocabulary, grammar, phrases, test prep, and video lessons across 62 languages. This website uses Laravel behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: robots.txt not found.
Master any language with 103,000+ learning items: vocabulary, grammar, phrases, test prep, and video lessons across 62 languages. Free to start.
Top issues to fix
8 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.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
SEO
2 issue(s) found
Performance
198 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Master any language with 103,000+ learning items: vocabulary, grammar, phrases, test prep, and video lessons across 62 languages. Free to start.
Meta tags
- Title
- Learn Languages Through Real Content - SubLearn
- Description
- Master any language with 103,000+ learning items: vocabulary, grammar, phrases, test prep, and video lessons across 62 languages. Free to start.
- Canonical
- https://sublearn.com
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, viewport-fit=cover, interactive-widget=resizes-content
- Robots meta
- Manifest
- https://sublearn.com/site.webmanifest?v=5
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- sublearn.com
- Valid from
- Aug 11, 2026
- Valid to
- Nov 9, 2026
- Days until expiry
- 77
- SAN domains
- sublearn.com, *.sublearn.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 3 cookie(s) observed
Content & assets
Headings
H1 1 · H2 17 · H3 24
Links
193 internal · 2 external · 15 broken
Images
144 total · 0 missing alt
Scripts / Styles
16 scripts · 4 stylesheets
JS / CSS size
59.7 KB · 12.1 KB
Page size
375 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://sublearn.com
- Final URL
- https://sublearn.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 191 ms
- HTML size
- 375 KB
- Redirect chain
- https://sublearn.com
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Frequently asked questions
- What technology does sublearn.com use?
- sublearn.com is built with Laravel, Cloudflare Analytics.
- Is sublearn.com secure (HTTPS)?
- Yes. sublearn.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Nov 9, 2026.
- Who hosts sublearn.com?
- Hosting provider information for sublearn.com is not available yet.
- What is sublearn.com's SEO score?
- sublearn.com scored 90/100 for SEO in the latest analysis (excellent).
- What is sublearn.com's overall website score?
- sublearn.com has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card