Top Chrome Extensions for Website Seo Checker
Website Seo Checker Chrome extensions — 36K monthly searches · Rankings shifted 61× in 7 days · Top 3 locked — dominated by incumbents
What Developers Can Learn
Intelligence derived from tracked keywords across all Website Seo Checker sub-keywords
Most Congested
The 'Website Seo Checker' space shows low competition concentration (0.103), but the dominant player captures 91% of tracked users.
Entrants with 10K users compete on equal footing, while quality expectations remain high at 4.5 average top-5 rating.
Possible Openings
Adjacent keywords like 'Domain Authority Checker' (140K) and 'Local Seo' (81K) offer significantly higher search volume with lower direct competition, serving specialized segments within the broader SEO tooling market.
Positioning Patterns
Top extensions blend descriptive naming with value propositions (free, audit, analysis).
The market leader drives volume with 100K users despite a moderate 4.6 rating, while competitors compensate with higher ratings (4.8) on smaller user bases.
Top Extensions Leaderboard
7-day ranking snapshot and appearances in Top 10
| # | Extension | Users | Rating | Appearances | Category | Momentum |
|---|---|---|---|---|---|---|
| 1 |  Website SEO Checker | 100,000+ | ⭐ 4.6 | 7/7d | Seo | — stable |
| 2 |  Website Ranking and SEO Checker by Semalt | 10,000+ | ⭐ 4.8 | 7/7d | Seo | — stable |
| 3 |  SEO Checker Tool - Get Free SEO Audit Analysis | 10,000+ | ⭐ 4 | 7/7d | Seo | — stable |
| 4 |  Serpstat Website SEO Checker | 30,000+ | ⭐ 4.7 | 5/7d | Seo | — stable |
| 5 |  Website SEO Checker | 6 | ⭐ 0 | 7/7d | Seo | — stable |
| 6 |  On Page SEO Checker | 3,000+ | ⭐ 5 | 6/7d | Seo | ↓ dropping |
| 7 |  SEO Checker | 8,000+ | ⭐ 4.7 | 7/7d | Seo | ↓ dropping |
| 8 |  Analysis SEO & Website Checker - PR-CY | 8,000+ | ⭐ 4.9 | 7/7d | Seo | ↑ rising |
| 9 |  Smart Website SEO Checker - On-Page SEO Checker & Analyzer | 14 | ⭐ 0 | 4/7d | Seo | — stable |
| 10 |  Similarweb - Website Traffic, AI Traffic & SEO Checker | 1,000,000+ | ⭐ 4.6 | 7/7d | Seo | ↓ dropping |
Website SEO Checker
100,000+ · ⭐ 4.6 · 7/7d
Website Ranking and SEO Checker by Semalt
10,000+ · ⭐ 4.8 · 7/7d
SEO Checker Tool - Get Free SEO Audit Analysis
10,000+ · ⭐ 4 · 7/7d
Serpstat Website SEO Checker
30,000+ · ⭐ 4.7 · 5/7d
Website SEO Checker
6 · ⭐ 0 · 7/7d
On Page SEO Checker
3,000+ · ⭐ 5 · 6/7d
SEO Checker
8,000+ · ⭐ 4.7 · 7/7d
Analysis SEO & Website Checker - PR-CY
8,000+ · ⭐ 4.9 · 7/7d
Smart Website SEO Checker - On-Page SEO Checker & Analyzer
14 · ⭐ 0 · 4/7d
Similarweb - Website Traffic, AI Traffic & SEO Checker
1,000,000+ · ⭐ 4.6 · 7/7d
Ranking Volatility - Top 10 Ranks
7-day Top 10 movement snapshot (2026-06-30 to 2026-07-06)
✦ Entered Top 10 This Week
↓ Dropped Out of Top 10
Data Methodology
- Data source:
- Chrome Web Store search results
- Update frequency:
- Weekly
- Monthly Search Demand:
- Estimated demand indicator sourced from third-party keyword data. Not CWS-internal figures.
I record every Chrome Web Store listing change — and what it does to rankings.
9 months of listing rewrites, user-count shifts, and rating changes — joined with daily keyword rankings. Replay any change a competitor made and see exactly what it did to their position. Report in 48 hours; your keywords monitored from day one.
$49 one-time · Full refund if not satisfied