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?

Hosting provider information for wanikani.com is not available yet.

What is wanikani.com's SEO score?

wanikani.com scored 75/100 for SEO in the latest analysis (fair).

What is wanikani.com's overall website score?

wanikani.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.

wanikani.com

WaniKani, a kanji learning application by Tofugu

Last scanned Jul 26, 2026, 7:46 AM

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. SEO is good (75/100) and accessibility is fair (70/100). Security scores excellent (90/100) and performance excellent (90/100). 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.

Top issues to fix

7 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.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

SEO

4 issue(s) found

Performance

1.05 s

Security

HTTPS & header checks

Accessibility

1 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.

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

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

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

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: wanikani.com
Valid from: Jun 23, 2026
Valid to: Sep 21, 2026
Days until expiry: 55
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 · 5 broken

Images

11 total · 9 missing alt

Scripts / Styles

7 scripts · 1 stylesheets

JS / CSS size

117 KB · 0 B

Page size

136 KB

Robots.txt & Sitemap

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

SEO issues

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

Scan details

Requested URL: https://wanikani.com
Final URL: https://www.wanikani.com/
HTTP status: 200
HTTP version: HTTP/2
Response time: 1.05 s
HTML size: 136 KB
Redirect chain: https://wanikani.com → https://www.wanikani.com/

See something wrong on this report? Request a correction

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?: Hosting provider information for wanikani.com is not available yet.
What is wanikani.com's SEO score?: wanikani.com scored 75/100 for SEO in the latest analysis (fair).
What is wanikani.com's overall website score?: wanikani.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.