Ahrefsの使い方：2026年にGoogleで1位を獲得する方法

クイックスタート

このガイドでは、Ahrefsのすべての機能について解説します。

• はじめる アカウントを作成し、最初のプロジェクトを設定してください。
• How to Use Content Writing Helper — Draft pages that match search intent from the first line
• キーワードエクスプローラーの使い方 — Turn one seed keyword into thousands of keyword ideas
• How to Use Managing Backlinks — See every link pointing at your site and your rivals
• サイト監査の使い方 — Catch technical SEO faults before they cost you traffic
• 交通量予測の使い方 — Size up any market before you write a single article
• ランクトラッカーの使い方 — Watch your keyword rankings move week by week
• How to Use SEO Reporting Tool — Send clients clean reports without building slides
• ウェブ分析ツールの使い方 — Track real visits with a free privacy-first script
• サイトエクスプローラーの使い方 — Reverse engineer any competitor in under five minutes

所要時間： 各作品につき5分

このガイドには以下の内容も含まれています。 プロのヒント | よくある間違い | トラブルシューティング | 価格 | 代替案

このガイドを信頼する理由

I have used Ahrefs daily for three years across client sites and my own site.

Every step below comes from real work, not from a product tour.

Ahrefs is one of the best known SEO tools in digital marketing.

Most people open it, run one report, and never touch the rest.

This guide shows you how to use Ahrefs feature by feature.

Step by step, with screenshots and the shortcuts I actually use.

Ahrefsチュートリアル

This How to Use Ahrefs tutorial walks through every tool in order, from your first project to advanced keyword research.

アーレフス

Find the keywords your competitors rank for and the links holding them up. Ahrefs runs backlink analysis, keyword research and site audit crawls from one dashboard. Free Webmaster Tools let you audit your own site before you pay a cent.

今すぐAhrefsをお試しください →

レビュー全文を読む →

AHREFSの代替案 →

Ahrefsの始め方

Before you touch any feature, finish this one-time setup.

約3分かかります。

まずはこちらの簡単な概要をご覧ください。

それでは、各ステップを順を追って見ていきましょう。

ステップ1：アカウントを作成する

Go to the Ahrefs website and pick a plan that fits your workload.

Enter your email, set a password, and confirm the link in your 受信トレイ.

✓ チェックポイント: You land on the empty dashboard.

ステップ2：最初のプロジェクトを追加する

A project can be a domain, a subfolder or a single URL.

Import it from Google Search Console, or add it manually and verify ownership.

Connecting search console also unlocks real click データ inside your reports.

✓ チェックポイント: Your project appears on the dashboard with a crawl queued.

Step 3: Turn On Alerts

Open Alerts and add your domain for backlinks, mentions and keyword rankings.

Ahrefs then emails you when links or positions move.

How to Use Ahrefs Content Writing Helper

Content Writing Helper lets you draft and edit pages around target keywords without guessing what to cover.

以下に、その使用方法をステップごとに説明します。

Step 1: Open the Content Helper

Open any project and click the Content Writing Helper tab.

Paste your draft or start from a blank page.

Step 2: Add Your Target Keyword

Enter your main keyword and the country you want to rank in.

Ahrefs pulls the top ranking pages for that given search query.

これがその様子です。

✓ チェックポイント: A coverage score appears beside your draft.

Step 3: Fill the Coverage Gaps

Work through the suggested subtopics one by one.

Write for your target audience first, then trim for search engines.

Ahrefsキーワードエクスプローラーの使い方

キーワードエクスプローラー lets you run your whole keyword research process inside one screen.

以下に、その使用方法をステップごとに説明します。

ステップ1：シードキーワードを入力する

Type a broad term like coffee machines into Keywords Explorer.

Seed keywords are the words that define your niche.

Ahrefs then lets you analyze keywords by clicks, cost and competition.

Step 2: Read the Keyword Metrics

Check search volume, keyword difficulty, clicks and estimated traffic potential.

Monthly search volume alone will mislead you, so read clicks too.

これがその様子です。

✓ チェックポイント: The matching terms report fills with keyword suggestions and related keywords.

Step 3: Filter for Low Difficulty Keywords

Set keyword difficulty below 20 and volume above 100.

Long tail keywords with four or more words convert best.

Specific keywords bring fewer visits but far more sign-ups.

How to Manage Backlinks in Ahrefs

Managing Backlinks lets you run backlink analysis on any site and find link building targets fast.

以下に、その使用方法をステップごとに説明します。

Step 1: Open the Backlinks Report

Enter your domain in Site Explorer and click Backlinks.

You will see every live link and all referring domains.

Step 2: Study a Competitor Backlink Profile

Swap your domain for a competitor’s domain and repeat.

Sort a competitor’s backlinks by domain rating to find the strongest sites.

これがその様子です。

✓ チェックポイント: The report lists every backlinks pointing at the domain.

Step 3: Use Link Intersect

Link Intersect shows sites linking to rivals but not to your own site.

Ahrefs Site Auditの使い方

サイト監査 lets you crawl your site and monitor over 100 technical and on page SEO issues.

以下に、その使用方法をステップごとに説明します。

ステップ1：プロジェクトを作成する

Add a domain manually or import it from Google Search Console.

Step 2: Run Your First Crawl

Set the crawl limit, then start the audit and wait a few minutes.

Ahrefs flags every issue as a Notice, Warning or Error.

これがその様子です。

✓ チェックポイント: The Overview report shows a health score out of 100.

Step 3: Fix Errors First

Clear red errors, then yellow warnings, then blue notices.

How to Use Ahrefs Traffic Estimation

トラフィック推定 lets you estimate the search traffic any page or domain earns from search engines.

以下に、その使用方法をステップごとに説明します。

ステップ1：URLを入力する

Paste a competitor’s domain, a subfolder or a single page.

Step 2: Read the Traffic Graph

The chart shows organic traffic and organic keywords over time.

Sudden drops usually point to an algorithm hit or a technical fault.

これがその様子です。

✓ チェックポイント: You can see which pages rank for the most valuable terms.

Step 3: Open Top Pages

Top pages ranks their web pages by traffic, so you see what works.

Ahrefs Rank Trackerの使い方

ランクトラッカー lets you track your google rankings and compare them against rivals.

以下に、その使用方法をステップごとに説明します。

ステップ1：キーワードを追加する

Paste your target keywords, or import them from Google Search Console.

ステップ2：場所とデバイスを設定する

Pick country, language and mobile or desktop.

Rankings differ sharply between デバイス for the same given keyword.

これがその様子です。

✓ チェックポイント: Your first position report appears within a few hours.

Step 3: Add Competitors

Add up to five rivals so you can see which competitors rank above you.

Ahrefs SEOレポートツールの使い方

SEO Reporting Tool lets you turn raw seo metrics into a report a client can read in two minutes.

以下に、その使用方法をステップごとに説明します。

Step 1: Pick Your Project

Open the dashboard and select the domain you want to report on.

ステップ2：指標を選択する

Add traffic, domain rating, keyword rankings and referring domains.

Cut anything the client will not act on.

これがその様子です。

✓ チェックポイント: A preview of the report opens in your browser.

Step 3: Schedule Delivery

Set a monthly email so the report sends itself.

Ahrefs Web Analyticsの使い方

ウェブ分析 lets you see real visitor data beside your search data in one place.

以下に、その使用方法をステップごとに説明します。

Step 1: Add the Script

Copy the snippet and paste it into the head of your web pages.

Step 2: Verify Tracking

Load your homepage, then check that the live counter moves.

Data starts collecting immediately, with no cookie banner needed.

これがその様子です。

✓ チェックポイント: Your first sessions appear in the dashboard.

Step 3: Compare Sources

Split traffic by channel to separate search from social and direct.

Ahrefs Site Explorerの使い方

サイトエクスプローラー lets you study any domain’s backlink profile and organic keywords in one report.

以下に、その使用方法をステップごとに説明します。

Step 1: Paste a Domain

Drop any URL into Ahrefs Site Explorer and press enter.

Step 2: Read the Overview

Check domain rating, referring domains and traffic in the top row.

Domain rating measures link strength on a 100-point scale.

これがその様子です。

✓ チェックポイント: The overview loads with backlink and traffic charts.

Step 3: Open Content Gap

Content gap reveals terms rivals rank for and you do not.

Ahrefsのプロ向けヒントとショートカット

After three years of daily use, these are the habits that save me the most time.

キーボードショートカット

ほとんどの人が見逃す隠れた機能

• SEO Toolbar: Install the browser extension and see seo metrics on every search engine results pages listing you visit.
• Traffic potential: Ignore volume and sort by estimated traffic potential to find lucrative keywords others skip.
• Internal link opportunities: Site Audit suggests internal links based on the terms your pages already rank for.
• ブランドレーダー： Track how often Large Language Models cite your brand in conversational search results.
• Free Webmaster Tools: Free tools that let you audit and monitor a verified site with no paid plan.
• Ahrefs Academy: Free seo tutorials and courses that cover the whole keyword research process.

Here’s the dashboard view I check every Monday morning:

Ahrefsでよくある間違いを避ける方法

Mistake #1: Chasing Volume Instead of Intent

Mistake #2: Treating Site Audit as a One-Off

Mistake #3: Copying Competitor Keywords Blindly

Ahrefsのトラブルシューティング

Problem: Site Audit Crawls Zero Pages

原因： Your robots.txt file blocks AhrefsBot, or the crawl needs JavaScript rendering.

修理： Allow AhrefsBot in robots.txt, then turn on JavaScript rendering in the crawl settings and rerun.

Problem: Rank Tracker Positions Do Not Match What I See

原因： Your browser personalises results by location, history and device.

修理： Compare in an incognito window set to the same country and device as your tracked profile.

Problem: Traffic Estimates Look Too Low

原因： Estimates only count organic keywords in the index for that country.

修理： Switch the country filter to worldwide, then cross-check against Google Search Console clicks.

Problem: New Pages Never Rank

原因： The page targets a term far above your domain rating.

修理： You rank higher by matching intent, not by writing more. Rebuild the page around low difficulty keywords first.

📌 注記： If none of these fix your issue, contact Ahrefs support through the in-app chat.

Ahrefsとは何ですか？

アーレフス is a search engine optimization platform built on its own web crawler.

It shows you what ranks, why it ranks, and which links hold it up.

Think of it as a telescope pointed at search engines.

It crawls the web, stores the links it finds, and turns that index into reports you can act on.

こちらの簡単な概要をご覧ください。

主な機能は以下のとおりです。

• Content Writing Helper: AIライティング アシスタント that grades your draft against top ranking pages
• キーワードエクスプローラー: The keyword research tool behind every campaign, with full keyword metrics
• Managing Backlinks: Full backlink profile data with new, lost and broken link reports
• サイト監査: Scheduled crawls that protect your site’s technical health
• トラフィック推定: Organic traffic estimates for any URL, folder or full domain
• ランクトラッカー: Position tracking across countries, devices and search engine results pages
• SEO Reporting Tool: Scheduled exports and dashboards for clients or your own team
• ウェブ分析: A lightweight, cookie-free analytics script included at no cost
• サイトエクスプローラー: The core research tool inside the Ahrefs SEO tools suite

詳細なレビューについては、こちらをご覧ください。 Ahrefsのレビュー.

Here’s how the platform is laid out:

Ahrefsの価格

2026年のAhrefsの料金は以下の通りです。

無料トライアル: No free trial. Ahrefs Webmaster Tools stays free for sites you verify yourself.

返金保証: No refunds, but you can cancel or downgrade at any point in the billing cycle.

Here’s the current plan breakdown:

💰 最もお得な価格: Standard — it adds Content Explorer and far deeper historical data than Lite.

Ahrefsと代替ツールの比較

How does Ahrefs compare with the rest of the market? Here’s the landscape:

おすすめ商品：

• 総合ベスト： Ahrefs — the deepest link index and the fastest crawler
• ベスト予算： Ubersuggest — free keyword tools plus cheap paid tiers
• 初心者におすすめ： Mangools — clean interface and gentle seo training material
• 代理店に最適： SE Ranking — white-label reports at a fraction of the cost

🎯 Ahrefsの代替案

Ahrefsの代替サービスをお探しですか？おすすめの選択肢はこちらです。

• 🚀 セムラッシュ: Wider toolkit covering ads, social and PR alongside search data.
• 💰 おすすめ: The cheapest way to get keyword suggestions and basic backlink data.
• 🎨 サーファーSEO: Grades drafts against top ranking pages while you write.
• ⚡ コンテンツラプター: Builds briefs and outlines fast for teams publishing at volume.
• 🔒 モズ： Trusted domain authority scores and a large learn seo library.
• 🧠 SEランキング: Strong AI visibility tracking and white-label client dashboards.
• 👶 マングールズ： The friendliest keyword research tool for first-time users.
• 🌟 ランクトラッカー: Focused position tracking with alerts at a low monthly price.

全リストについては、こちらをご覧ください。 Ahrefsの代替 ガイド。

⚔️ Ahrefsとの比較

Here’s how Ahrefs stacks up head to head:

• Ahrefs vs Semrush: Ahrefs wins on link data and crawl speed. Semrush wins on breadth and paid ad reports.
• Ahrefs vs Surfer SEO: Surfer edits better. Ahrefs researches better. Many teams pay for both.
• Ahrefs vs Content Raptor: Content Raptor is cheaper for briefs. Ahrefs owns the underlying data.
• Ahrefs vs Moz: Moz is easier for newcomers. Ahrefs finds far more referring domains per site.
• Ahrefs vs SE Ranking: SE Ranking costs less for agencies. Ahrefs keeps a bigger index.
• Ahrefs vs Ubersuggest: Ubersuggest suits hobby sites. Ahrefs suits anyone competing for money terms.
• Ahrefs vs Mangools: Mangools is simpler and cheaper. Ahrefs handles enterprise scale research.
• Ahrefs vs Ranktracker: Ranktracker tracks positions well. Ahrefs adds the research behind them.

今すぐAhrefsを使い始めましょう

あなたはAhrefsの主要な機能をすべて使いこなせるようになりました。

• ✅ Content Writing Helper
• ✅ キーワードエクスプローラー
• ✅ Managing Backlinks
• ✅ サイト監査
• ✅ 交通量予測
• ✅ ランキングトラッカー
• ✅ SEO Reporting Tool
• ✅ ウェブ分析
• ✅ サイトエクスプローラー

次のステップ： Pick one feature and try it today.

ほとんどの人はキーワードエクスプローラーから始めます。

Here’s what my own dashboard looked like after the first month:

It takes less than five minutes to get your first report.

よくある質問

Ahrefsはどのように機能するのですか？

Ahrefs runs its own web crawler. It stores links and rankings in a live index, then turns that data into backlink, keyword and site audit reports.

Ahrefsツールの使い方は？

Add a project and connect Google Search Console. Then run Site Explorer for competitor research, Keywords Explorer for keyword ideas, and Site Audit for technical checks.

Ahrefsは無料で利用できますか？

Yes, partly. Ahrefs Webmaster Tools gives free site audit and backlink data for sites you verify. Paid plans start at $108 per month.

AhrefsはSEO対策に役立ちますか？

Yes. Its link index is the largest of the major seo tools. The keyword metrics are accurate enough to plan a full content calendar.

AhrefsとSemrushの違いは何ですか？

Ahrefs leads on backlink depth and crawl speed. Semrush covers more marketing ground, including paid ads, social posting and PR tracking.