jpdb.io
Japanese dictionary and spaced repetition system – jpdb
Last scanned Jul 26, 2026, 5:47 AM · 1 view
Overall score
Excellent
Summary
Powerful Japanese dictionary and an all-in-one learning system for kanji and vocabulary. SEO is good (85/100) and accessibility is excellent (90/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Missing OpenGraph tags.
Powerful Japanese dictionary and an all-in-one learning system for kanji and vocabulary.
Top issues to fix
5 issues found
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
Missing html lang attribute
AccessibilitySet <html lang="…"> so screen readers pick the right pronunciation rules.
17 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
3 issue(s) found
Performance
124 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Powerful Japanese dictionary and an all-in-one learning system for kanji and vocabulary.
Meta tags
- Title
- Japanese dictionary and spaced repetition system – jpdb
- Description
- Powerful Japanese dictionary and an all-in-one learning system for kanji and vocabulary.
- Canonical
- https://jpdb.io
- Language
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0, maximum-scale=1.0
- Robots meta
- Manifest
- https://jpdb.io/static/9919db124702.webmanifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- 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
- Let's Encrypt
- Subject
- jpdb.io
- Valid from
- Jul 15, 2026
- Valid to
- Oct 13, 2026
- Days until expiry
- 76
- SAN domains
- jpdb.io, www.jpdb.io
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 1
Links
15 internal · 2 external · 17 broken
Images
1 total · 0 missing alt
Scripts / Styles
3 scripts · 2 stylesheets
JS / CSS size
1.8 KB · 0 B
Page size
11.9 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
Scan details
- Requested URL
- https://jpdb.io
- Final URL
- https://jpdb.io
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 124 ms
- HTML size
- 11.9 KB
- Redirect chain
- https://jpdb.io
See something wrong on this report? Request a correction
Frequently asked questions
- What technology does jpdb.io use?
- We did not detect any specific technologies for jpdb.io in the latest scan.
- Is jpdb.io secure (HTTPS)?
- Yes. jpdb.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 13, 2026.
- Who hosts jpdb.io?
- Hosting provider information for jpdb.io is not available yet.
- What is jpdb.io's SEO score?
- jpdb.io scored 85/100 for SEO in the latest analysis (great).
- What is jpdb.io's overall website score?
- jpdb.io has an overall SiteGraph score of 94/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card