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wanikani.com

WaniKani, a kanji learning application by Tofugu

Last scanned Aug 6, 2026, 5:00 AM · 9 views

86

Overall score

Great

Summary

WaniKani is a Japanese radicals, kanji, and vocabulary learning web app that uses mnemonics and SRS to make kanji learning simple. This website is hosted on Cloudflare. SEO is good (80/100) and accessibility is fair (70/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing canonical link.

WaniKani is a Japanese radicals, kanji, and vocabulary learning web app that uses mnemonics and SRS to make kanji learning simple.

United States
Hosted on Cloudflare

Top issues to fix

5 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • 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 canonical link

    SEO

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

  • No structured data (JSON-LD) found

    SEO

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

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

80

SEO

3 issue(s) found

100

Performance

973 ms

90

Security

HTTPS & header checks

70

Accessibility

1 issue(s) found

Score history

+4 overall since Jul 26, 2026

Overall
86
SEO
80
Security
90
Performance
100
Accessibility
70

Organization

Company details published in this site's own structured data.

WaniKani is a Japanese radicals, kanji, and vocabulary learning web app that uses mnemonics and SRS to make kanji learning simple.

Contact

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

Source: https://www.wanikani.com/contact

Meta tags

Title
WaniKani, a kanji learning application by Tofugu
Description
WaniKani is a Japanese radicals, kanji, and vocabulary learning web app that uses mnemonics and SRS to make kanji learning simple.
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0, maximum-scale=1.0
Robots meta
Manifest
https://www.wanikani.com/manifest.json

OpenGraph & Twitter Card

OpenGraph

og:title
WaniKani, a kanji learning application by Tofugu
og:description
Learn Japanese kanji the effective way!
og:type
website
og:url
https://www.wanikani.com/

Twitter Card

twitter:card
summary_large_image
twitter:title
WaniKani, a kanji learning application by Tofugu
twitter:description
Learn Japanese kanji the effective way!

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
172.66.153.7
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 172.66.153.7
  • 104.20.24.250
AAAA
  • 2606:4700:10::6814:18fa
  • 2606:4700:10::ac42:9907
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
wanikani.com
Valid from
Jun 23, 2026
Valid to
Sep 21, 2026
Days until expiry
46
SAN domains
wanikani.com, *.wanikani.com

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 3 · H3 6

Links

4 internal · 1 external · 0 broken

Images

11 total · 9 missing alt

Scripts / Styles

9 scripts · 1 stylesheets

JS / CSS size

238 KB · 0 B

Page size

137 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
9
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing canonical link
  • No structured data (JSON-LD) found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text

Scan details

Requested URL
https://wanikani.com
Final URL
https://www.wanikani.com/
HTTP status
200
HTTP version
HTTP/2
Response time
971 ms
HTML size
137 KB
Redirect chain
https://wanikani.com → https://www.wanikani.com/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does wanikani.com use?
We did not detect any specific technologies for wanikani.com in the latest scan.
Is wanikani.com secure (HTTPS)?
Yes. wanikani.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 21, 2026.
Who hosts wanikani.com?
wanikani.com is hosted on Cloudflare, behind Cloudflare CDN.
What is wanikani.com's SEO score?
wanikani.com scored 80/100 for SEO in the latest analysis (great).
What is wanikani.com's overall website score?
wanikani.com has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
Has wanikani.com's score changed over time?
wanikani.com's overall score has improved by 4 points (from 82 to 86) since Jul 26, 2026.