Top Chrome Extensions for SEO
SEO Chrome extensions — 40 keywords tracked, 650 extensions analyzed · Market data updated weekly
Market overview
What Developers Can Learn
Intelligence derived from tracked keywords across all SEO sub-keywords
Most Congested
Keyword research and plagiarism checking dominate with over 1.8M monthly search volume, but both are saturated by established players like Keywords Everywhere (1M users) and Ubersuggest (600K users).
New entrants face high barriers to compete in these top-volume clusters.
Possible Openings
Technical SEO tools (redirect checker, readability checker, robots txt tester) show high volatility but modest volume (10K-34K), indicating underserved niches.
Local SEO (81K volume) is also underpenetrated.
Site Audit Tool and DRChecker are new entrants already gaining traction in these spaces.
Positioning Patterns
Top-ranked SEO extensions maintain 4.2-4.5 ratings, carry 600K-1M users, and focus on one core use case.
Extensions like Keywords Everywhere and Ubersuggest win through brand recognition and comprehensive keyword features rather than broad functionality.
Overall Market Leaders
Top extensions by total user base — across all SEO-related keywords combined
| # | Extension | Users | Rating | Appearances | Category |
|---|---|---|---|---|---|
| 1 |  Similarweb - Website Traffic, AI Traffic & SEO Checker | 1,000,000+ | ⭐ 4.6 | 7/7d | Seo |
| 2 |  SEOquake | 1,000,000+ | ⭐ 4.5 | 7/7d | Seo |
| 3 |  SEO META in 1 CLICK | 900,000+ | ⭐ 4.9 | 7/7d | Seo |
| 4 |  Detailed SEO Extension | 600,000+ | ⭐ 4.9 | 7/7d | Seo |
| 5 |  Ubersuggest - SEO and Keyword Discovery | 600,000+ | ⭐ 4.5 | 7/7d | Seo |
| 6 |  Ahrefs SEO Toolbar | 400,000+ | ⭐ 4.4 | 7/7d | Seo |
| 7 |  SEO Analysis & Website Review by WooRank | 200,000+ | ⭐ 3.9 | 7/7d | Seo |
| 8 |  SEO Minion | 200,000+ | ⭐ 4 | 7/7d | Seo |
| 9 |  GMB Everywhere - GBP Audit for Local SEO | 200,000+ | ⭐ 4.7 | 7/7d | Seo |
| 10 |  META SEO inspector | 200,000+ | ⭐ 4.4 | 7/7d | Seo |
Similarweb - Website Traffic, AI Traffic & SEO Checker
1,000,000+ · ⭐ 4.6 · 7/7d
SEOquake
1,000,000+ · ⭐ 4.5 · 7/7d
SEO META in 1 CLICK
900,000+ · ⭐ 4.9 · 7/7d
Detailed SEO Extension
600,000+ · ⭐ 4.9 · 7/7d
Ubersuggest - SEO and Keyword Discovery
600,000+ · ⭐ 4.5 · 7/7d
Ahrefs SEO Toolbar
400,000+ · ⭐ 4.4 · 7/7d
SEO Analysis & Website Review by WooRank
200,000+ · ⭐ 3.9 · 7/7d
SEO Minion
200,000+ · ⭐ 4 · 7/7d
GMB Everywhere - GBP Audit for Local SEO
200,000+ · ⭐ 4.7 · 7/7d
META SEO inspector
200,000+ · ⭐ 4.4 · 7/7d
Intent Clusters
Demand grouped by user intent — understanding what users actually search for in this market.
Domain Authority Checker
2 keywordsExplore Sub-keywords
Tracked keywords within the SEO category — click any to explore CWS rankings
keyword research
2.1M/moChrome extensions ranking for keyword research.
plagiarism checker
1.8M/moChrome extensions ranking for plagiarism checker.
domain authority checker
70K/moChrome extensions ranking for domain authority checker.
page authority checker
70K/moChrome extensions ranking for page authority checker.
local seo
81K/moChrome extensions ranking for local seo.
sitemap generator
67K/moChrome extensions ranking for sitemap generator.
seo audit
59K/moChrome extensions ranking for seo audit.
Keyword rankings
What happens when a user types "keyword research" in the Chrome Web Store search results
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
Current Top 10 - search results for "keyword research"
Snapshot as of 2026-07-06
| # | Extension | Users | Rating | Appearances | Category | Momentum |
|---|---|---|---|---|---|---|
| 1 |  Keywords Everywhere - Keyword Tool | 1,000,000+ | ⭐ 4.5 | 7/7d | Seo | — stable |
| 2 | Ubersuggest - SEO and Keyword Discovery | 600,000+ | ⭐ 4.5 | 7/7d | Seo | — stable |
| 3 |  Keyword Surfer | 600,000+ | ⭐ 4.2 | 7/7d | Seo | ↑ rising |
| 4 |  Free Keyword Research Tool | 15 | ⭐ 5 | 7/7d | Seo | ↓ dropping |
| 5 |  AutoTDK - SEO Search Keyword Tool | 40,000+ | ⭐ 4.4 | 6/7d | Seo | — stable |
| 6 |  Titans Pro - Amazon KDP Keyword Research Tool | 40,000+ | ⭐ 3.6 | 7/7d | Seo | — stable |
| 7 |  Dart Profit - Shopee Keyword Research Tool | 881 | ⭐ 1 | 7/7d | Seo | — stable |
| 8 |  Amazon Keyword Tool for free : SellerApp | 30,000+ | ⭐ 4.5 | 7/7d | Seo | — stable |
| 9 |  Keyword Trends - Keyword Research Tool | 478 | ⭐ 5 | 7/7d | Seo | — stable |
| 10 |  KWS Everywhere - SEO Keyword Tool | 8,000+ | ⭐ 4.9 | 6/7d | Seo | — stable |
Keywords Everywhere - Keyword Tool
1,000,000+ · ⭐ 4.5 · 7/7d
Ubersuggest - SEO and Keyword Discovery
600,000+ · ⭐ 4.5 · 7/7d
Keyword Surfer
600,000+ · ⭐ 4.2 · 7/7d
Free Keyword Research Tool
15 · ⭐ 5 · 7/7d
AutoTDK - SEO Search Keyword Tool
40,000+ · ⭐ 4.4 · 6/7d
Titans Pro - Amazon KDP Keyword Research Tool
40,000+ · ⭐ 3.6 · 7/7d
Dart Profit - Shopee Keyword Research Tool
881 · ⭐ 1 · 7/7d
Amazon Keyword Tool for free : SellerApp
30,000+ · ⭐ 4.5 · 7/7d
Keyword Trends - Keyword Research Tool
478 · ⭐ 5 · 7/7d
KWS Everywhere - SEO Keyword Tool
8,000+ · ⭐ 4.9 · 6/7d
What Is the SEO Extension Market?
The SEO extension market serves content creators, marketers, and web developers who need to optimize site visibility directly from their browser. Core use cases include keyword research, plagiarism detection, domain authority analysis, and local SEO auditing. With 650 active extensions and 6 distinct intent clusters, the market is fragmented but competitive in traditional areas like keyword tools. Developers should note that high search volume for keyword research (2.1M) and plagiarism checking (1.8M) reflects Google Search trends, not Chrome Web Store behavior. Technical SEO niches show high volatility, suggesting shifting user needs and opportunities for differentiated tools. This category remains critical for developers because organic search visibility directly impacts revenue, making browser-based SEO utilities a high-demand extension category.
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.
Is your extension visible
in SEO extension market?
Track your extension's ranking for any SEO keyword, monitor weekly changes, and find the exact gaps between you and the top 10.