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https://reactjs.org

SEO

· 7 checks — Canonical, meta, content depth, internal links, image SEO, and hreflang rolled into one auditable list.
SCORE
94
GRADE
A
FIX
0
REVIEW
0
PASS
6
INFO
1

Cross-tab audit — SEO, performance, crawlability, mobile, structured data

Checks
7
6 PASS
A+
Canonical URL
Properly configured
PASS
Properly configured
Info::
Canonical tag present
Got: https://react.dev/
Info::
Canonical is self-referencing
Info::
Canonical matches final URL after redirects
Info::
Canonical target reachable (self-referencing)
Info::
Canonical points to a different domain
Canonical URL Problem
Page URL https://reactjs.org Canonical https://react.dev/ Match Self-referencing (correct)
A
Meta Tags
Title: 5 chars
PASS
Title: 5 chars
Info::
Page title is set
Got: React
Warning::
Title is only 5 characters — consider expanding
Info::
Title and H1 are identical
Consider differentiating — the title is for search results, the H1 is for the page.
Title

"React"

5 characters Too short
Title: React
H1: React
Match: Similar ✓
Robots: Indexable (no restrictions)

Consider differentiating — the title is for search results, the H1 is for the page.

Why this matters

Title and H1 match exactly — internally consistent but misses an opportunity to optimize each for its audience (Title for SERP CTR, H1 for on-page).

Learn more ▾

Title and H1 don't have to be identical — and often shouldn't be. The Title competes for SERP click-through (lead with keyword + value prop), while the H1 confirms to the visitor they're on the right page (more conversational is fine). Differentiating gains both surfaces.

Source: Google Search Central / on-page SEO

A
Content Depth
1439 words, Fairly Difficult
PASS
1439 words, Fairly Difficult
Info::
Page has 1439 words — good depth for search engines
Info::
Text-to-HTML ratio is 3%
Very low ratio suggests heavy framework overhead or boilerplate.
Info::
Reading level: Fairly Difficult (grade 10)
1439 words

Good depth

Reading level

Very Easy
Easy
Fairly Easy
Standard
Fairly Difficult
Difficult
Very Difficult

Grade 10

Text-to-HTML Ratio

3% text 97% HTML

8 KB / 266 KB

Very low ratio suggests heavy framework overhead or boilerplate.

Why this matters

Informational: ratio of visible text bytes to total HTML bytes. Very low ratios suggest excessive markup overhead.

A+
Image SEO
43 images, 41 descriptive filenames
PASS
43 images, 41 descriptive filenames
Info::
2 image(s) have hash/generic filenames
41 descriptive
0 hash-based
2 generic
43 total
FilenameQualityAltIssues
imagegeneric✓1
Current: image
Suggested: next.jpg
imagegeneric✓1
Current: image
Suggested: next.jpg

See Accessibility tab for detailed alt text quality analysis.

A+
Schema Markup Audit
Per-type completeness vs Schema.org requirements + rich-result eligibility
PASS

No structured data detected

Without JSON-LD or microdata, this page can't qualify for any of Google's rich result formats. Even basic Organization or WebSite schema is a quick win.

Hreflang
0 hreflang tags
INFO
0 hreflang tags

No hreflang tags detected.

Hreflang tags are only needed for multilingual or multi-regional sites.

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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