

⚡ Quick Verdict:
- 価格: Moz starts at $39/mo vs Similarweb at $125/mo
- 最適な用途: Moz for keyword research and rank tracking, Similarweb for website traffic analysis and market research
- 主な違い: Moz focuses on SEO tools like domain authority and backlink analysis, while Similarweb focuses on traffic analytics and competitive intelligence
- Our pick: Moz for most SEO professionals — it costs less and covers more core SEO tasks

Moz and Similarweb both call themselves SEO tools.
しかし、それらは全く異なる問題を解決する。
Moz helps you rank higher with keyword research and site audits.
Similarweb shows you where your competitors get their traffic.
Picking the wrong one wastes months of work and budget.
This comparison breaks down both so you can choose with confidence.
概要
This Moz vs Similarweb comparison covers pricing, features, and ease of use.
We also break down who each tool works best for.
Our sources include published specs, documentation, and G2 reviews.
By the end, you’ll know which SEO tool fits your needs.
Mozとは何ですか?
Moz is an all-in-one SEO software suite for search engine optimization.
It helps businesses improve their search engine rankings and drive organic traffic.
Moz Pro includes keyword research, rank tracking, site auditing, and backlink analysis.
The platform is known for its Domain Authority metric used across the SEO industry.

モズ
Moz Pro gives you keyword research, rank tracking, and site audits in one place. Plans start at $39/month with a free trial available.
Mozの価格設定
Here’s what Moz costs in 2026. Four plans cover different team sizes.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| スターター | 月額39ドル | フリーランサー そしてソロマーケター |
| 標準 | 月額79ドル | 中小企業と成長中のチーム |
| 中くらい | 月額143ドル | Mid-size companies with multiple projects |
| 大きい | 月額239ドル | Agencies and large-scale SEO teams |
Pricing verified April 2026.

無料トライアル: Yes, Moz offers a free trial so you can test features before paying.
返金保証: Mozは返金保証を謳ってはいませんが、いつでもキャンセルできます。
📌 注記: Moz’s Starter plan at $39/month is cheaper than similar tiers on Semrush and アーレフス. API access starts at $5/month, which is also lower than competitors.
⚠️ 警告: Moz’s keyword research reporting limits are more restrictive on lower plans. Check your query volume needs before choosing Starter.
Mozの主なメリット
Here’s what makes Moz worth considering:
- ドメインオーソリティ: Moz created the Domain Authority metric. It’s widely used across the SEO industry to measure a site’s ranking potential.
- キーワードエクスプローラー: The keyword research tool generates keyword ideas with search volume, difficulty scores, and opportunity metrics.
- リンクエクスプローラー: Moz Link Explorer has an index of over 44 trillion links. It shows link metrics including backlink profiles, linking domains, link data, and spam score. The moz data helps you evaluate inbound links and find link research opportunities.
- サイトクロール: The site auditing tool crawls your website to find technical SEO issues like broken links and crawl errors.
- 無料ツール: MozBar is a free Chrome extension that shows key SEO metrics directly in your browser while you search.
- 教育リソース: Moz provides free learning through Moz Academy and Whiteboard Friday videos to help users improve their SEO knowledge.

What Our Team Noticed
私たちの 作家 signed up for Moz and spent several days exploring the platform. Here’s what stood out:

Mozの長所と短所
✅ メリット
- Most affordable entry price among top SEO tools at $39/month
- Domain Authority is the industry standard for measuring site strength
- Free MozBar extension shows metrics in search results
- 初心者でもすぐに習得できるユーザーフレンドリーなインターフェース
- Strong educational resources including Whiteboard Friday
❌ デメリット
- Keyword database is smaller than Semrush and Ahrefs
- Rank tracking updates weekly instead of daily
- Customer support limited to email and live chat, not 24/7
- Reporting limits on keyword research are restrictive on lower plans
Similarweb とは何ですか?
Similarweb is a digital intelligence platform for website traffic analysis.
It tracks billions of digital interactions across websites, mobile apps, and social media.
The platform provides competitive intelligence, market research, and audience insights.
Businesses use Similarweb to benchmark their performance against competitors.

シミラーウェブ
Similarweb gives you traffic analytics, competitor benchmarking, and market research. Plans start at $125/month with a 7-day free trial.
Similarwebの価格
Here’s what Similarweb costs in 2026. Three plans cover different needs.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 競合情報 | 月額125ドル | Tracking competitor traffic and benchmarks |
| 競合情報とSEO | 月額335ドル | SEO teams needing traffic data and keyword tools |
| 競合情報、SEO、広告 | 月額540ドル | Full marketing teams running paid and organic campaigns |
Pricing verified April 2026.

無料トライアル: Yes, Similarweb offers a 7 day free trial for new users.
返金保証: Similarweb does not publicly list a money-back guarantee. Contact their sales team for contract terms.
📌 注記: Similarweb also offers a limited free version and previously had a web intelligence starter plan option. You get basic traffic data, but features like keyword research and full 競合分析 require a paid plan.
⚠️ 警告: Long-term subscribers have reported rising costs over time. G2 reviews mention reduced data accuracy for low-traffic websites and billing issues during contract changes.
Similarwebの主なメリット
Here’s what makes Similarweb worth considering:
- 交通分析: Similarweb shows detailed breakdowns of traffic sources, engagement metrics, and geographic trends for any website.
- 競合他社のベンチマーク: You can compare your performance against up to 25 competitors across traffic, keywords, and engagement data.
- 市場調査: The market research tool reveals industry trends, emerging competitors, and seasonal patterns in your niche.
- AIエージェント: New AI SEO Strategy Agents turn keyword inputs into data-driven plans for your content strategy.
- アプリのインテリジェンス: Similarweb tracks mobile apps traffic, app usage patterns, and download trends across platforms. It covers app traffic data that other SEO tools miss.
- セールスインテリジェンス: Sales teams can use AI-driven prospecting tools to identify high-intent leads based on digital behavior. The platform also provides stock intelligence data for publicly traded companies.

What Our Team Noticed
Our writer signed up for Similarweb and explored the platform’s features. Here’s what stood out:

Similarwebのメリットとデメリット
✅ メリット
- Best-in-class website traffic analysis with real user data
- Competitor benchmarking against up to 25 rivals at once
- AI agents automate SEO strategy and trend analysis
- Covers web, mobile apps, and paid search in one platform
- Strong market research for understanding audience demographics
❌ デメリット
- Entry price of $125/month is more than triple Moz’s starting cost
- トラフィックの少ないウェブサイトではデータ精度が低下する
- Free trial offers limited access that may not show full capabilities
- Customer support gets mixed reviews on responsiveness
機能比較
Ready to dive into a detailed comparison of Moz vs Similarweb? We’ll explore 8 key features to help you determine which platform best suits your needs.
| 特徴 | モズ | シミラーウェブ |
|---|---|---|
| 開始価格 | 月額39ドル | 月額125ドル |
| 無料プラン | ✅ Free tools (MozBar, limited Keyword Explorer) | ✅ 無料版には制限があります |
| キーワードリサーチ | ✅ キーワードエクスプローラー | ✅ キーワードエクスプローラー |
| ランクトラッキング | ✅ 毎週更新 | ✅ ランキングトラッカー |
| ウェブサイトトラフィック分析 | ❌ | ✅ 主要機能 |
| ドメインオーソリティ指標 | ✅ Industry standard | ❌ |
| バックリンク分析 | ✅ Link Explorer (44T+ links) | ✅ バックリンクインテリジェンス |
| 市場調査 | ❌ | ✅ Market trends & industry data |
| AI機能 | ✅ Moz AI | ✅ AI SEOエージェント |
| 最適な用途 | SEO professionals and small teams | Marketing analysts and enterprise teams |
1. キーワードリサーチ
モズ: Keyword Explorer generates keyword ideas with search volume, difficulty scores, and opportunity metrics. It also shows related keywords and SERP analysis for each term. The tool is built specifically for finding ranking keywords and building an SEO strategy around them.

シミラーウェブ: The keyword explorer shows keyword performance, search volume, and keyword rankings across your competitive landscape. It also reveals which keywords drive traffic to competitor websites. The focus is on understanding search intent and competitor keyword strategies rather than keyword suggestions alone.

2. 競合分析
モズ: Moz lets you check what competitors are doing with their SEO. You can compare domain authority, backlink profiles, and ranking keywords. The Link Intersect tool shows who links to competitors but not to your site, which helps with link building.
シミラーウェブ: Competitive benchmarking is where the Similarweb platform excels. You can compare your performance against up to 25 competitors across traffic sources, engagement metrics, and keyword rankings. The platform also reveals competitors’ best-performing pages, top referral sites, and ad strategies.

3. バックリンク分析
モズ: Moz Link Explorer has an index of over 44 trillion links. It provides link data including linking domains, inbound links, external links, and spam score. The Page Authority and Domain Authority metrics help you judge link quality at a glance.

シミラーウェブ: Backlink Intelligence provides backlink data and referring domain insights. However, backlink analysis is not Similarweb’s primary focus. The tool works better as a supplement to traffic analysis rather than a standalone link research tool.

4. Website Traffic Analysis
モズ: Moz does not offer website traffic analysis as a core feature. You can track your own search engine rankings and SEO performance, but you cannot see estimated traffic volumes for competitor websites.
シミラーウェブ: This is Similarweb’s strongest feature. The platform shows traffic sources, engagement data like bounce rate and visit duration, and geographic trends. It aggregates real user data from clickstream partnerships and web crawlers to estimate any website’s traffic. This data driven approach provides actionable insights for your digital strategy.

⚠️ 警告: Similarweb’s traffic estimates are more accurate for high-traffic sites. G2 reviews note reduced precision for websites with lower visitor counts.
5. ランクトラッキング
モズ: The Rank Tracker monitors keyword rankings for local and national searches. It updates on a weekly basis and lets you distinguish between traffic from different geographic areas. On-demand rank tracking gives a quick snapshot without using a project slot.
シミラーウェブ: The rank tracker monitors website rankings and keyword performance across search engines. It also connects ranking data to estimated traffic, giving you real time insights into how ranking changes affect your site’s visits and conversion analysis.

6. 現場監査
モズ: The Site Crawl tool identifies technical SEO issues including broken links, crawl errors, and on page problems. It checks your SEO health and flags issues that hurt your search engine visibility. The On-Page Grader gives specific recommendations for each target keyword on your pages.

シミラーウェブ: Similarweb includes SEO tools for site audits on its higher-tier plans. However, site auditing is not a primary focus. For deep technical SEO audits, you’ll likely need a dedicated tool alongside Similarweb.
7. Market Research and Trends
モズ: Moz does not include market research tools. Its focus stays on SEO-specific tasks like keyword data, backlink profiles, and search rankings. For market trends, you’d need a separate tool.
シミラーウェブ: The market research tool tracks emerging trends, industry benchmarks, and seasonal traffic patterns. It also provides audience demographics and consumer behavior data. This helps digital marketing teams plan campaigns around market shifts and stay ahead of competitors.

8. 価格設定とコスト
料金プランを並べて比較してみましょう。
| プラン | モズ | シミラーウェブ |
|---|---|---|
| エントリーレベル | 月額39ドル(スタータープラン) | 月額125ドル(競合情報分析) |
| 中級クラス | 月額79ドル(スタンダードプラン) | 月額335ドル(競合情報分析およびSEO対策) |
| 上段 | 月額143ドル(中型) | $540/month (Competitive Intel, SEO & Ads) |
| トップティア | 月額239ドル(Lサイズ) | Enterprise (Custom pricing) |
| 無料トライアル | はい | 7日間無料トライアル |
モズ: At $39/month, the Moz plan has the lowest entry price among other SEO tools. Even the Large plan at $239/month costs less than Similarweb’s entry-level plan. Moz also offers cheaper Moz API access starting at $5/month, and you can generate custom reports on any plan.
シミラーウェブ: Starting at $125/month, the Similarweb cost is more than three times Moz’s entry price. The jump to $335/month for the professional plan with SEO features makes it a significant investment. The enterprise plan also offers advanced features for larger teams. However, the platform covers traffic analytics, competitor research, and SEO in one subscription.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| 予算が限られている | モズ | Starts at $39/mo vs $125/mo |
| ウェブサイトのトラフィックデータ | シミラーウェブ | Core traffic analysis feature |
| キーワード調査の深さ | モズ | Dedicated Keyword Explorer |
| Competitor traffic insights | シミラーウェブ | Benchmark up to 25 competitors |
| バックリンク分析 | モズ | 44T+ link index with spam score |
| 市場調査 | シミラーウェブ | Industry trends and audience data |
| 初心者向けSEO | モズ | Simpler interface, free tools |
💰 あなたの予算
Moz’s Starter plan costs $39/month, while Similarweb starts at $125/month. If budget matters, Moz gives you core SEO tools at a fraction of the cost.
🔌 あなたの技術スタック
Moz integrates well with Google Analytics and works through a browser extension. Similarweb connects with Google Analytics and offers API access for pulling data at scale.
📝 あなたのSEO目標
If you need to rank higher in search results, Moz covers keyword research, site audits, and link building. If you need to understand where competitor traffic comes from, Similarweb is the better fit.
🎓 あなたの経験レベル
Moz has a simpler interface and strong educational resources like Whiteboard Friday. Similarweb is more complex and better suited for experienced digital marketing professionals.
🆓 無料トライアルとデモ
Moz offers a free trial plus free tools like MozBar. Similarweb offers a 7-day free trial and a limited free version with basic traffic data.
🛟 サポートオプション
Moz provides email and live chat support. Similarweb offers support but G2 reviews mention mixed responsiveness, especially around billing and contract changes.
切り替えガイド
既にこれらのツールのいずれかをご利用ですか?切り替える場合、どのような変更が予想されますか?
🔄 MozからSimilarwebに切り替えますか?
✅ 得られるもの:
- Full website traffic analysis with real user data and traffic sources
- Competitor benchmarking against up to 25 rivals at once
- Market research with industry trends and audience demographics
❌ 失うもの:
- Domain Authority and Page Authority metrics for link evaluation
- Spam Score detection for identifying low-quality backlinks
- Free MozBar browser extension and on-page SEO grading
📋切り替え方法:
- Export your keyword lists and rank tracking data from Moz Pro
- Sign up for a Similarweb free trial to explore the interface
- Set up your competitor list and import keyword targets into Similarweb
🔄 SimilarwebからMozに切り替えますか?
✅ 得られるもの:
- Lower monthly cost starting at $39/month instead of $125/month
- Domain Authority and spam score for evaluating link quality
- Deeper site auditing with the Site Crawl and On-Page Grader tools
❌ 失うもの:
- Website traffic analysis for any domain on the web
- Market research tools with industry benchmarks and audience insights
- App intelligence and shopper intelligence modules
📋切り替え方法:
- Export your keyword tracking data and competitor reports from Similarweb
- Sign up for a Moz free trial and set up your campaigns
- Import your tracked keywords and configure site crawl settings in Moz
What Our Review Didn’t Cover
This comparison focused on individual users and small-to-mid-size teams. We didn’t evaluate enterprise-level features like Similarweb’s custom API integrations or Moz’s large-scale SEO packages for agencies managing dozens of clients. We also didn’t test paid search tracking, ai traffic estimation accuracy, or stock performance monitoring in Similarweb. Our observations are based on the April 2026 versions of both platforms. If you’re running large scale SEO campaigns across multiple platforms, your priorities may differ from what we’ve covered here.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | モズ |
| 🔍キーワード調査 | モズ |
| 📊 交通分析 | シミラーウェブ |
| 🔗 バックリンク分析 | モズ |
| 🏆 Competitor Benchmarking | シミラーウェブ |
| 🛠️サイト監査 | モズ |
| 📈 市場調査 | シミラーウェブ |
| 👶 使いやすさ | モズ |
| 🏆総合優勝 | モズ |
🏆 受賞者:Moz
Moz wins 5 out of 8 categories.
最適な用途: SEO professionals, small businesses, freelancers, and anyone who needs keyword research, rank tracking, and backlink analysis at an affordable price.
Moz and Similarweb serve different purposes in your digital marketing stack. Moz is built for hands-on SEO work like finding keywords, fixing site issues, and tracking your search rankings. Similarweb is built for understanding the broader market, analyzing competitor traffic, and spotting industry trends.
Similarweb is excellent for enterprise teams that need web intelligence and traffic benchmarking. But for most SEO professionals focused on ranking higher and growing organic traffic, Moz covers the essential tools at a much lower price.
Mozの比較をもっと見る
Mozが他の競合他社と比べてどうなのか、以下に示します。
Moz vs Semrush
Mozが勝利した点: Lower starting price ($39 vs $139/mo), Domain Authority metric, free MozBar extension
Semrushが優れている点: Larger keyword database, daily rank updates, content marketing toolkit
Moz vs Ahrefs
Mozが勝利した点: More affordable entry plan, spam score detection, beginner-friendly interface
Ahrefsが勝利した点: Faster backlink index updates, larger keyword database, content explorer tool
Moz vs SEランキング
Mozが勝利した点: Domain Authority as an industry standard, larger link index, educational resources
SEランキングで勝利した項目: Lower pricing for similar features, daily rank updates, more flexible plan tiers
Moz vs ユーバーサジェスト
Mozが勝利した点: Deeper backlink analysis with 44T+ link index, site crawl tool, professional-grade metrics
Ubersuggestが勝利した点: Lifetime pricing option, simpler interface for beginners, lower monthly cost
Similarwebの比較をもっと見る
Similarwebが他の競合他社と比べてどうなのか、以下に示します。
Similarwebが勝利した点: Website traffic analysis with real user data, competitor benchmarking scale, market research depth
Semrushが優れている点: Deeper keyword research tools, content marketing features, more affordable entry price
Similarwebが勝利した点: Traffic source breakdowns for any website, app intelligence module, industry-level benchmarking
Ahrefsが勝利した点: Backlink index size and freshness, keyword difficulty accuracy, lower cost for SEO-only needs
Similarweb vs SE Ranking
Similarwebが勝利した点: Market research and audience demographics, traffic analysis at scale, AI-powered trend agents
SEランキングで勝利した項目: Budget-friendly pricing for small teams, daily rank tracking, white-label reporting
よくある質問
MozはSEOに役立ちますか?
Yes, Moz Pro is a solid choice for search engine optimization. It covers keyword research, rank tracking, site audits, and backlink analysis. SEO experts and freelancers use Moz tools to improve their seo efforts and track how their site performs in search engine results.
Similarwebは何に使われていますか?
Similarweb is used for website traffic analysis, competitive intelligence, and market research. Businesses use it to understand where competitors get their traffic, analyze historical data, and benchmark their own performance against industry peers.
Moz SEOの費用はいくらですか?
Moz pricing starts at $39/month for the Starter plan. The Standard plan costs $79/month, Medium is $143/month, and Large is $239/month. A free trial is available to test features before paying.
Similarwebは無料で利用できますか?
Similarweb offers a limited free version with basic traffic data. For full access to keyword research, competitor benchmarking, and detailed analytics, you need a paid plan starting at $125/month. A 7 day free trial is also available to test the platform’s capabilities.
Which is better for beginners, Moz or Similarweb?
Moz is the better choice for beginners. It has a simpler interface, lower pricing, and free educational resources like Whiteboard Friday. Similarweb is more complex and designed for experienced marketing professionals.












