⚡ Quick Verdict:
- 価格: Rank Math paid plans start at $5.99/mo. Semrush starts at $117.33/mo.
- 最適な用途: Rank Math for on-page SEO on a WordPress site. Semrush for keyword research and competitor データ.
- 主な違い： Rank Math is an seo plugin. Semrush is a full SaaS platform.
- Our pick: Rank Math for most WordPress users. It handles core SEO and has a free version.
Rank Math and Semrush both help you climb higher in search results.
But they are not the same kind of tool.
Rank Math is a WordPress plugin that lives inside your site.
Semrush is a research platform you open in a browser.
One handles on-page SEO. The other digs into data and competitors.
This guide breaks down the Rank Math Semrush choice for beginners.
概要
This Rank Math vs Semrush comparison covers pricing, features, and ease of use.
We also show who each tool works best for.
Our sources include published specs, documentation, and verified user reviews.
Our writers use both tools for real SEO work on WordPress.
By the end, you will know which fits your website.
Rank Mathとは何ですか?
Rank Math is an seo plugin for WordPress.
It was founded in 2018 in インド.
The plugin helps you improve each page and blog post.
You get title tags, meta settings, and alt 文章 プロンプト。
It also adds rich snippets and an XML sitemap.
Rank Math connects with Google Analytics and Google Search Console too.
Here is a short video walkthrough of the plugin.
🏆 Winner: Rank Math
A free-to-start seo plugin built for any WordPress site. It handles on-page SEO, rich snippets, and rank tracking in one place.
Rank Math Pricing
Here is what Rank Math costs in 2026. Let’s break it down.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | $0 | Bloggers and small websites |
| プロ | 月額5.99ドル | Serious solo site owners |
| 仕事 | 月額19.99ドル | フリーランサー with client sites |
| 代理店 | 月額44.99ドル | 多くのサイトを管理する代理店 |
Pricing verified June 2026.
無料トライアル: No trial needed. The free version works forever with no credit card.
返金保証: Paid plans come with a 30-day refund window.
📌 注記： The free version already covers on-page SEO, rich snippets, and an XML sitemap. Most bloggers never need to pay.
⚠️ 警告： Some sources list the Pro plan at $5.75/month. Our verified price is $5.99/month. Billing shows annually, so check the total at checkout.
Key Benefits of Rank Math
Here is what makes Rank Math worth considering:
- Freemium model: The free version handles core SEO. You only pay when you want extra new features.
- Google Analytics integration: See traffic and Google Search Console data inside your dashboard. No extra tab needed.
- Rich snippets: Add schema so your pages show star ratings in Google search results.
- Rank tracking: Watch your average position for specific keywords over time.
- Technical setup: It creates a robots.txt file and sitemap in a few clicks.
- User friendly: A setup wizard walks beginners through every step.
The screenshot below shows the top benefits at a glance.
Here is the Rank Math dashboard on a live WordPress site.
What Our Team Noticed
私たちの 作家 set up Rank Math on a fresh WordPress site and used it for several weeks. Here is what stood out:
Rank Math Pros & Cons
✅ メリット
- Free version covers most on-page SEO needs
- Setup wizard is user friendly for beginners
- Google Analytics integration and Search Console data inside WordPress
- Built-in rank tracking and rich snippets support
❌ デメリット
- No deep keyword research database like Semrush
- Some new features sit behind paid plans
- Works only on WordPress sites
Semrushとは何ですか？
Semrush is an all-in-one SaaS platform for marketing strategy.
It was founded in 2008 in the United States.
The platform packs more than 40 seo tools into one login.
You get keyword research, 競合分析, and backlink data for serious SEO research.
It also runs site audits that flag broken links and other issues.
A free Chrome extension lets you check any page fast.
Watch the platform in action below.
セムラッシュ
A research platform for keyword research, competitor analysis, and rank tracking. Best for marketers who want data across many websites.
Semrushの価格
Here is what Semrush costs in 2026. The plans are built for teams.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| プロ | 月額117.33ドル | Freelancers and startups |
| グル | 月額208.33ドル | マーケティングチームの拡大 |
| 仕事 | 月額416.66ドル | Agencies and large sites |
Pricing verified June 2026.
無料トライアル: Semrush offers a 7-day free trial on paid plans.
返金保証: A 7-day refund window applies to online orders.
📌 注記： The Guru plan at $208.33/month adds content tools and historical data. Most solo users stay on Pro.
⚠️ 警告： Prices shown are monthly on annual billing. Month-to-month plans cost more. There is no free version, only a trial.
Semrushの主なメリット
Here is what makes Semrush worth considering:
- Keyword research: Find relevant keywords and keyword suggestions with search volume and difficulty scores.
- Competitor analysis: See the search terms and backlinks driving a rival’s organic traffic.
- Content tools: The SEO Writing Assistant and ContentShake help you plan and draft articles.
- Site audits: Scans flag broken links, thin pages, and technical errors on your website.
- ソーシャルメディア toolkit: Schedule posts to Facebook and Twitter from one dashboard.
- Data visualization: Clear charts track your web traffic and rankings over time.
The image below highlights the top benefits.
Here is the Semrush dashboard where all the data lives.
What Our Team Noticed
Our writer signed up for Semrush and used it for keyword research and site audits. Here is what stood out:
Semrushのメリットとデメリット
✅ メリット
- Deep keyword research with millions of relevant keywords
- Backlink analysis and broken links audits
- SEO Writing Assistant and ContentShake for articles
- Competitor analysis across search engines
❌ デメリット
- Much higher monthly price than Rank Math
- 初心者にとっては学習曲線が急峻
- Not a WordPress plugin, so no on-page editing
機能比較
Ready to dig into Rank Math vs Semrush feature by feature? We will look at nine areas that shape your online visibility. This helps you match the right tool to your website.
| 特徴 | ランク数学 | セムラッシュ |
|---|---|---|
| 開始価格 | 0ドル（無料） | 月額117.33ドル |
| 無料版 | ✅ | ❌ |
| Keyword Research Database | ❌ | ✅ |
| On-Page SEO Editor | ✅ | ❌ |
| Rich Snippets & Schema | ✅ | 限定 |
| バックリンク分析 | ❌ | ✅ |
| ランクトラッキング | ✅ | ✅ |
| サイト監査 | 基本 | ✅ 上級者向け |
| WordPressプラグイン | ✅ | ❌ |
| 最適な用途 | On-page WordPress SEO | Research & competitor data |
1. On-Page SEO & Content Optimization
ランク数学： This is where the plugin shines. It scores each blog post as you write and suggests title tags, meta text, and alt text. The checks live right inside the WordPress editor.
セムラッシュ: The SEO toolkit reviews an article and gives fixes. But you copy those tips back into your own editor. It does not touch the page directly.
2. キーワードリサーチ
ランク数学： It pulls basic keyword suggestions from Google. You can target a specific keyword per page, but there is no large research database.
セムラッシュ: This is its strongest area. The keyword research tool surfaces relevant keywords, volume, and difficulty. It helps you pick the right keywords before you write.
3. ランクトラッキング
ランク数学： The rank tracker shows your average position for chosen search terms. It pulls your google rankings into the dashboard so you can watch certain pages closely and ignore other pages.
セムラッシュ: Its SERP trackers update daily and compare you against rivals. The data is deeper, which suits users chasing higher rankings across many sites.
4. Schema Markup & Rich Snippets
ランク数学： It offers more schema types than Yoast SEO for free. Rich snippets can add stars and FAQs to your entries in Google search results.
セムラッシュ: The AI content analyzer checks structure and readability. It does not add schema to your pages, since it is not a plugin.
5. バックリンク分析
ランク数学： It does not analyse backlinks. It can flag internal links and works a bit like a link assistant, but external link data is missing.
セムラッシュ: Backlink analysis is a core strength. You can view a rival’s links, spot broken links, and find new link targets. This data drives real ranking gains.
6. Content Marketing & AI Writing
ランク数学： Its Content AI suggests keywords and headings for an article. The feature is handy but lighter than a full content platform.
セムラッシュ: ContentShake generates SEO-ready articles using AI. Paired with content planning and performance measurement, it covers the whole workflow.
7. Competitor & Market Research
ランク数学： It has no competitor research. Local SEO settings help you rank in your city, but you cannot study rival sites.
セムラッシュ: The market research toolkit shows a rival’s traffic and top pages. This competitor analysis is why many agencies pay for the platform.
8. Technical SEO
ランク数学： It builds a robots.txt file and XML sitemap for you. It also supports Google Tag Manager, so tracking setup stays simple.
セムラッシュ: Its site audit crawls your whole website and scores technical health. The advertising toolkit adds paid-search data on top.
9. Ease of Use & Integrations
ランク数学： The setup wizard makes it user friendly from day one. Google Analytics integration means your traffic data sits next to your content.
セムラッシュ: The platform has more features, so it takes longer to learn. Clear data visualization and a Chrome extension help, but the ability to master it takes time.
10. 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 | ランク数学 | セムラッシュ |
|---|---|---|
| 無料 | $0 | ❌ (trial only) |
| エントリ | 月額5.99ドル | 月額117.33ドル |
| 中 | 月額19.99ドル | 月額208.33ドル |
| トップ | 月額44.99ドル | 月額416.66ドル |
ランク数学： The price gap is huge. A full year of Rank Math Pro costs less than one month of Semrush. For a single WordPress site, that value is hard to beat.
セムラッシュ: You pay more, but you get research data that no plugin can match. If keyword and competitor data drive your business, the cost can pay for itself.
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 | ランク数学 | Free version plus $5.99 plan |
| オンページSEO | ランク数学 | Edits live in WordPress |
| キーワード調査 | セムラッシュ | Huge database of relevant keywords |
| Backlink data | セムラッシュ | Full competitor analysis |
| 初心者向け | ランク数学 | Setup wizard guides you |
💰 あなたの予算
Rank Math starts free and paid plans cost a few dollars. Semrush is a bigger monthly commitment for any business.
🔌 あなたの技術スタック
Rank Math only works on a WordPress site. Semrush works with any platform and connects to Google tools.
📝 コンテンツの目標
Need to polish a blog post fast? Pick Rank Math. Need to research the right keywords first? Pick Semrush.
🎓 あなたの経験レベル
Beginners find Rank Math easier to manage. Semrush rewards users who can handle more data and tools.
🆓 無料トライアルとデモ
Rank Math has a free version you can keep. Semrush offers a 7-day trial to test the platform.
📈 Your Traffic Goals
Both aim to grow your organic traffic. Semrush finds the search terms, while Rank Math helps each page rank for them.
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、どのような変更が想定されますか？
🔄 Switching from Rank Math to Semrush?
✅ 得られるもの：
- A full keyword research database
- Backlink analysis and competitor data
- Deeper site audits across websites
❌ 失うもの：
- On-page editing inside WordPress
- The free version
- Built-in rich snippets and sitemap
📋切り替え方法：
- Keep Rank Math active for on-page SEO
- Create a Semrush account for research
- Googleアナリティクスとサーチコンソールを接続する
🔄 Switching from Semrush to Rank Math?
✅ 得られるもの：
- A much lower monthly cost
- On-page SEO right in the editor
- Free rich snippets and XML sitemap
❌ 失うもの：
- The large keyword research database
- Backlink and competitor analysis
- Cross-platform data for non-WordPress sites
📋切り替え方法：
- Install the Rank Math plugin on WordPress
- Run the setup wizard to import settings
- Add your target keywords to each page
What Our Review Didn’t Cover
This comparison focused on core SEO for solo owners and small teams. We did not test enterprise plans or every API. We also skipped speed plugins like WP Rocket, which starts at $59 per year, and NitroPack, which starts at $17.50 per month. Rivals such as Yoast SEO, SEOPress, and アイオセオ were only referenced, not fully reviewed. Our notes reflect the June 2026 versions, so features may change.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | ランク数学 |
| 📝 On-Page SEO | ランク数学 |
| 🔑キーワード調査 | セムラッシュ |
| 🔗 バックリンク分析 | セムラッシュ |
| 👶 使いやすさ | ランク数学 |
| ⭐ Rich Snippets & Schema | ランク数学 |
| 🏆総合優勝 | ランク数学 |
🏆 WINNER: RANK MATH
Rank Math wins 4 out of 6 categories.
最適な用途: WordPress site owners, bloggers, and beginners who want strong on-page SEO for a low price.
Rank Math and Semrush are two very different software tools. Rank Math is an seo plugin that improves your WordPress pages. Semrush is a research platform that studies keywords, backlinks, and rivals.
Semrush is excellent for keyword research and competitor analysis. If data drives your business, its extra functionality earns the price. Many marketers even use both Rank Math and Semrush together.
For most WordPress users, though, Rank Math is the smarter pick. It covers on-page SEO, rich snippets, and rank tracking for far less money. That is why it takes the overall win.
More of Rank Math Compared
Here is how Rank Math stacks up against other seo plugins:
Rank Math vs Yoast SEO
Rank Math wins on: more free schema types, built-in rank tracking, and a lower entry price than Yoast SEO’s $99 per year premium.
Yoast SEO wins on: a longer track record, simpler menus, and wider third-party guides.
Rank Math vs AIOSEO
Rank Math wins on: a more generous free version, Google Analytics integration, and a friendlier setup wizard.
AIOSEO wins on: a lighter footprint and a low $49.60 per year basic plan for simple sites.
Rank Math vs SEOPress
Rank Math wins on: more built-in modules, richer schema, and a bigger user community.
SEOPress wins on: a clean, ad-free dashboard and a flat $49 per year paid plan.
Semrushの比較をもっと見る
Here is how Semrush stacks up against other seo tools:
Semrushが優れている点： a wider tool set, advertising data, and stronger content marketing features.
アーレフス 勝利したタイトル： a larger backlink index, faster crawls, and a cleaner interface for link data.
Semrushが優れている点： deeper keyword data, more daily rank updates, and broader competitor analysis.
モズ 勝利したタイトル： an easier learning curve, trusted Domain Authority scores, and lower entry pricing.
Semrushが優れている点： far more data, richer site audits, and better 報告 チーム向け。
ユーバーサジェスト 勝利したタイトル： a much lower price, a lifetime plan option, and a simpler layout for beginners.
よくある質問
ランク計算はSEOに有効ですか？
Yes. Rank Math handles on-page SEO, rich snippets, and rank tracking. The free version alone covers most needs for a WordPress site, making it a strong pick for beginners.
What is a good Semrush rank?
Semrush measures rank as your average position in search results. A good rank sits on page one, ideally in the top three spots for your target keyword.
ランク計算はどのように機能するのですか？
Rank Math installs as a WordPress plugin. It scores each post, adds schema and sitemaps, and connects to Google Analytics and Google Search Console for tracking.
Does Semrush integrate with WordPress?
Semrush is not a WordPress plugin, but it connects through Google Search Console and a free SEO Writing Assistant add-on. You still copy its tips into WordPress by hand.
Should I use Rank Math and Semrush together?
Yes, many marketers do. Semrush finds the right keywords and backlinks. Rank Math then tunes each page for those terms on your WordPress site. They pair well.
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