クイックスタート
このガイドでは、Hunter.ioのすべての機能について説明します。
- はじめる アカウントを作成して受信トレイを接続してください。
- ドメイン検索の使い方 — Find multiple email addresses on any website address in seconds
- メールファインダーの使い方 — Get one exact address from a full name and a company name
- メール検証ツールの使い方 — Verify email addresses so nothing bounces and your domain stays clean
- キャンペーンの使い方 — Send cold email campaigns and automatic follow ups from one screen
- APIキーの使い方 — Pipe email data into your own software with a single key
- Googleスプレッドシートアドオンの使い方 — Run searches inside Google Sheets without copy and paste
- ブラウザ拡張機能の使い方 — Find email addresses on any website while you browse
- AIライティングアシスタントの使い方 — Draft cold email copy and subject lines in a few clicks
- 一括タスクの使い方 — Process an entire email list in one upload
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’ve used Hunter.io for two years across agency work and my own cold outreach.
Every screen below comes from real hands-on testing, not vendor marketing.
Hunter.io is one of the most trusted email finder tools on the web.
Most users run one domain search and never touch the other nine features.
Finding addresses is only half the job — the other half is making sure your emails reach a real inbox.
This guide shows you how to use Hunter io from first login to a full email outreach sequence.
スクリーンショットとプロのアドバイスを交えながら、手順を一つずつ解説します。
Hunter.io チュートリアル
This How to Use Hunter IO tutorial walks through every feature in order, from account setup to bulk domain search and campaigns.
ハンター.io
Find and verify professional email addresses in seconds. Hunter.io gives you domain search, an email verifier, and campaigns in one account. Start free — no card required.
Hunter.io の利用開始
Before any feature works, finish this one-time setup.
約3分かかります。
Here’s what the tool looks like in real use:
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
Visit hunter.io and click Sign Up.
会社のメールアドレスを入力し、パスワードを作成してください。
The free plan starts immediately, so you can test searches before paying anything.
✓ チェックポイント: Check your inbox for the confirmation message.
ステップ2：ダッシュボードを開く
Hunter.io runs in the browser, so there is no app to download.
Log in and the dashboard opens on Domain Search by default.
これがその様子です。
✓ チェックポイント: You should see your remaining monthly credits in the top corner.
Step 3: Connect Your Email Account
Open Settings and connect your Gmail or Outlook account.
This unlocks campaigns and lets you reply to prospects from the same screen.
Write down your ideal customer profile before you search. It keeps your lead list focused.
✅ 完了: これで、以下のすべての機能をご利用いただけます。
Hunter.ioドメイン検索の使い方
ドメイン検索 pulls every work address Hunter.io has found on one email domain.
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 Domain Search
Log into your account and click Domain Search in the top menu.
Type the website address of the company you want, such as stripe.com.
ステップ2：結果を読む
Hunter.io returns multiple email addresses with job titles and a confidence score.
It skips personal emails and shows only work contacts tied to that domain.
これがその様子です。
✓ チェックポイント: You should see a contact list plus the company’s email format at the top.
Step 3: Save the contacts
Tick the people you want and save them straight to a lead list.
✅ 結果: You have a clean list of prospects for one company in under a minute.
💡 プロのヒント: Filter by department before you export. It cuts a 200-row list down to the right person fast.
Hunter.ioのメール検索ツールの使い方
メールファインダー returns one verified address when you already know the person and the company.
以下に、その使用方法をステップごとに説明します。
Step 1: Enter the name and company
Open Email Finder and type the person’s full name plus the company name.
Both fields are required. A first name alone will not return a match.
ステップ2：検索を実行する
Click Find Email. Hunter.io checks public sources and applies the known email format.
You get one address rather than a long list to sort through.
これがその様子です。
✓ チェックポイント: You should see one address with a confidence score next to it.
Step 3: Save or copy the address
Save the contact to your leads, or copy it into other tools you already use.
✅ 結果: You found the right person’s work address without guessing at the spelling.
💡 プロのヒント: A low confidence score usually means a nickname. Try the spelling from their LinkedIn profile instead.
Hunter.ioメール検証ツールの使い方
メール検証ツール checks whether an address is live before you waste a send on it.
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 the address
Open Email Verifier and paste any address you want to check.
Step 2: Read the verdict
Hunter.io pings the mail server to determine whether the mailbox accepts messages.
Each result comes back labelled valid, risky, or invalid.
It will also identify catch-all servers that accept anything you send them.
これがその様子です。
✓ チェックポイント: You should see a status label and a confidence score for that address.
Step 3: Clean your email list
Delete every invalid row before you upload the file to your sending app.
✅ 結果: Your bounce rate stays low, which helps protect your sender reputation.
💡 プロのヒント: Re-verify your saved leads every two months. Professional data changes fast and dead rows creep back in.
Hunter.ioキャンペーンの使い方
キャンペーン sends personalized emails at scale and handles every follow up for you.
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：受信トレイを接続する
Connect your Gmail or Outlook account so Hunter.io can send on your behalf.
Sending from your own mailbox keeps your email outreach campaigns personal.
ステップ2：シーケンスを構築する
Write your first message, then add two follow up emails spaced a few days apart.
Use merge fields to personalize the greeting and the opening line for each contact.
これがその様子です。
✓ チェックポイント: You should see your sequence listed with each step and its delay.
ステップ3：起動と追跡
Pick your recipients, hit start, then track opens, clicks, and replies as they land.
✅ 結果: Your cold email campaigns run on schedule while you focus on the replies.
💡 プロのヒント: Research shows a single follow up can lift response rates by as much as 22%. Never send just one message.
Hunter.io APIキーの使い方
APIキー connects Hunter.io data to your own app, CRM, or internal software.
以下に、その使用方法をステップごとに説明します。
Step 1: Copy your key
Open your account settings and click the API tab, then copy the key.
Step 2: Make a test call
Paste the key into your app and run one domain search request.
The response comes back as JSON, ready to map into your database.
これがその様子です。
✓ チェックポイント: You should get a JSON response listing email addresses and confidence scores.
Step 3: Watch your credits
Every call spends credits from your plan, so cache results to save time and budget.
✅ 結果: Your own software can find emails automatically with no manual searching.
💡 プロのヒント: Never post an API key in public code or a shared repo. Store it as an environment variable.
Hunter.io Googleスプレッドシートアドオンの使い方
Googleスプレッドシートアドオン brings domain search and verification straight into a Google Sheets tab.
以下に、その使用方法をステップごとに説明します。
Step 1: Install the add-on
In Google Sheets, open Extensions, search the marketplace for Hunter, and install it.
Step 2: Authorize your account
Sign in and grant access so the add-on can read your remaining credits.
This is a one-time step per Google account.
これがその様子です。
✓ チェックポイント: You should see a Hunter menu sitting under Extensions.
Step 3: Run a search on a column
Highlight a column of domains and pick Domain Search from the Hunter menu.
✅ 結果: Your spreadsheet fills with email addresses without a single copy and paste.
💡 プロのヒント: Add a verification column beside the results. It flags invalid rows before anything reaches your sending app.
Hunter.ioブラウザ拡張機能の使い方
ブラウザ拡張機能 finds emails while you ブラウズ a company website or a LinkedIn profile.
以下に、その使用方法をステップごとに説明します。
Step 1: Install from the web store
Add the Chrome extension, then sign in with your existing account.
Step 2: Visit a company website
Click the Hunter icon in your toolbar while you visit any company page.
The popup lists contacts for that email domain without leaving the page.
これがその様子です。
✓ チェックポイント: You should see contacts for that domain inside the popup.
Step 3: Save anyone useful
Hit save and the contact drops into your leads automatically.
✅ 結果: You can find email addresses without breaking your reading flow.
💡 プロのヒント: It works from a LinkedIn post too. Open the poster’s profile, then click the icon in your toolbar.
Hunter.io AIライティングアシスタントの使い方
AIライティング アシスタント drafts cold email copy, subject lines, and follow ups from a short brief.
以下に、その使用方法をステップごとに説明します。
Step 1: Describe your offer
Tell it who you sell to and the pain point you fix.
Good input beats clever prompts here.
ステップ2：下書きを作成する
It writes subject lines and body copy aimed at your target audience’s interests.
Every draft ends with a clear call-to-action.
これがその様子です。
✓ チェックポイント: You should see a full draft with a subject line and a closing ask.
Step 3: Edit before sending
Rewrite one line per prospect so the message still reads like personal emails.
✅ 結果: You have personalized emails ready in minutes instead of an hour.
💡 プロのヒント: Personalized emails can raise open rates by up to 26% and click-throughs by 14%. That edit is worth the minute.
Hunter.ioの一括タスクの使い方
一括タスク runs bulk domain search and list verification across thousands of rows.
以下に、その使用方法をステップごとに説明します。
Step 1: Upload your CSV
Open Bulk Tasks and upload a CSV file of domains or addresses.
Step 2: Pick the task type
Choose bulk domain search, Email Finder, or verification.
The bulk verifier handles up to 5,000 email addresses in a single run.
これがその様子です。
✓ チェックポイント: You should see your job in the queue with a progress bar.
Step 3: Download the results
Export the finished file and import it into your sales tools.
✅ 結果: You built an email list for an entire company set in one process.
💡 プロのヒント: Split uploads into 1,000-row batches. A failed job is much cheaper to rerun that way.
Hunter.ioのプロ向けヒントとショートカット
After two years of daily use, these are the habits that save time.
The Google Sheets add-on was the real game changer for my weekly list building.
Here’s a snapshot of what the tool does best:
キーボードショートカット
| アクション | ショートカット |
|---|---|
| Open the browser extension popup | Alt + Shift + H (set in Chrome) |
| Copy a highlighted address | Ctrl + C / Cmd + C |
| Start a fresh domain search tab | Ctrl + T, then type hunter.io |
| Reload results after a failed search | Ctrl + R / Cmd + R |
ほとんどの人が見逃す隠れた機能
- Follow a company: Click Follow on any domain and Hunter.io alerts you when new email addresses appear.
- Email format detection: The format line at the top of a domain search tells you how to guess any missing name.
- Saved lead lists: Group leads by campaign so you never contact the same person from two sequences.
Hunter.ioでよくある間違いとその回避方法
Mistake #1: Sending to unverified addresses
❌ 間違い: Exporting a domain search and mailing every row the same day.
✅ 右: Run the email verifier first. Dead addresses hurt your sender reputation and push future messages to the spam folder.
Mistake #2: Blasting one generic message
❌ 間違い: Sending the same template to 500 recipients with no personalization.
✅ 右: Personalize the first line for each person. It is the single biggest driver of reply rates in cold email.
Mistake #3: Skipping the follow up
❌ 間違い: Sending one email and assuming silence means no.
✅ 右: Schedule two follow ups in campaigns. Most replies arrive after the second touch, not the first.
Hunter.io のトラブルシューティング
Problem: Domain search returns no results
原因： The company is small, or you entered a redirect rather than the real email domain.
修理： Check the domain in your browser first, then search the root address without www.
問題：メールが迷惑メールフォルダに入ってしまう
原因： A cold domain, no authentication, or too many invalid addresses in one send.
修理： Set up SPF and DKIM, warm the inbox for two weeks, and verify every list to improve deliverability.
Follow those basic practices and most messages get delivered on the first attempt.
Problem: Credits disappear faster than expected
原因： Bulk tasks and API calls both draw from the same monthly pool.
修理： Cache results in Google Sheets and re-run searches monthly, not weekly.
📌 注記： If none of these fix your issue, contact Hunter.io support.
Hunter.ioとは何ですか？
ハンター.io is an email finder that helps you find email addresses for the right person at any company.
Think of it like a phone book for work inboxes, built from publicly available pages across the web.
It is a powerful tool for anyone sending emails to people they have never met before.
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。
- ドメイン検索: Enter a company website and get every public work address on that email domain
- メールアドレス検索： Give it a full name and a company and it returns the single matching address
- メール検証: Checks any address to determine if the mailbox exists and how safe it is to contact
- キャンペーン: Send personalized emails, schedule follow ups, and track every response in one place
- APIキー: Push domain search and verification into your own app with a simple REST key
- Google スプレッドシートアドオン: Run searches and verification inside a spreadsheet instead of the web app
- ブラウザ拡張機能: A Chrome extension that surfaces contacts on any company website you visit
- AIライティングアシスタント: Drafts subject lines and body copy for outreach built around your offer
- 一括タスク: Upload a CSV file and process thousands of domains or addresses in one job
詳細なレビューについては、こちらをご覧ください。 Hunter.ioのレビュー.
Hunter.io の価格設定
Hunter.ioの2026年のコストは以下のとおりです。
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | 月額0ドル | Testing the tool and small manual searches |
| スターター | 月額34ドル | Solo founders running their first cold email campaigns |
| 成長 | 月額104ドル | Small sales teams sending steady email outreach |
| 仕事 | 月額209ドル | Agencies running bulk domain search at volume |
| 企業 | カスタム | Large teams needing API limits and support |
無料トライアル: Yes — the free plan runs with no time limit and no card.
返金保証: No formal guarantee, but you can downgrade at any time.
💰 最もお得な価格: Starter — enough monthly credits for steady cold outreach at a fair price.
Hunter.ioと代替案の比較
Hunter.ioは他社と比べてどうでしょうか？競合状況は以下のとおりです。
| 道具 | 最適な用途 | 価格 | 評価 |
|---|---|---|---|
| ハンター.io | Finding and verifying addresses | 月額34ドル | ⭐ 4.5 |
| 即座に | 大量送信 | 月額37ドル | ⭐ 4.6 |
| スノフ | Search plus sending in one | 月額39ドル | ⭐ 4.4 |
| アポロ | Contact database with phones | 月額49ドル | ⭐ 4.5 |
| 返信 IO | マルチチャンネルシーケンス | 月額59ドル | ⭐ 4.4 |
| アップリード | 検証済みのB2Bデータ | 月額99ドル | ⭐ 4.5 |
| レムリスト | Personalized creative outreach | 月額69ドル | ⭐ 4.3 |
| メールシェイク | Simple sales sequences | 月額58ドル | ⭐ 4.2 |
おすすめ商品：
- 総合ベスト： Hunter.io — the most accurate email finder with verification built in
- ベスト予算： Snov — cheaper credits if you also want sending
- 初心者におすすめ： Mailshake — the simplest campaign ビルダー here
- 営業チームに最適： Apollo — one database for emails, phones, and CRM sync
🎯 Hunter.ioの代替案
Hunter.ioの代替サービスをお探しですか？おすすめのサービスはこちらです。
- 🚀 即座に: Built for volume. Unlimited inboxes and 準備し始める make it the pick when you send thousands of cold emails a month.
- 💰 スノウ: Cheap credits, plus finder, verifier, and drip campaigns bundled together for small teams.
- 🏢 アポロ： A huge contact database with phone numbers and CRM sync, not just email data.
- ⚡ 返信IO: Adds LinkedIn steps and calls to your sequences for true multichannel outreach.
- 🔒 アップリード: Verified B2B records with an accuracy guarantee, better for enterprise data teams.
- 👶 メールシェイク: The easiest way in for beginners running their first campaigns.
- 🎨 レムリスト: Custom images and video make each message feel handmade.
- 🎯 キツツキ： Agency friendly with strong reply detection and client separation.
- 🔥 スマートリード: Rotates many sending accounts to protect deliverability at scale.
- 📊 セールスハンディ: Clear tracking and 報告 on every step of a sequence.
- 💼 クレンティ： Deep CRM integrations for sales teams already in HubSpot or セールスフォース.
- 🧠 ウォームボックス: Warms a new domain automatically so 早い messages avoid the spam folder.
- 🔧 メールドソ: Sets up sending infrastructure and mailboxes for you.
- ⭐ マニーリーチ: Pay-per-use pricing with no seat fees, handy for occasional campaigns.
- 🌟 ウォーミー： Automated inbox warmup with clear deliverability scoring.
全リストについては、こちらをご覧ください。 Hunter.ioの代替案 ガイド。
⚔️ Hunter.io との比較
Hunter.ioが各競合他社と比べてどのような点が優れているかを以下に示します。
- Hunter.io vs Instantly: Instantly sends better at scale. Hunter.io finds and verifies better. Many teams pay for both.
- Hunter.io vs Snov: Snov bundles more for less. Hunter.io wins on data accuracy and confidence scoring.
- Hunter.io 対 Apollo: Apollo has phone numbers and a bigger database. Hunter.io returns cleaner email results.
- Hunter.io 対 Reply IO: Reply IO is the stronger sequencer. Hunter.io is the stronger finder and verifier.
- Hunter.io vs UpLead: UpLead sells verified records outright. Hunter.io searches live pages for a lower price.
- Hunter.io vs Mailshake: Mailshake is simpler to run. Hunter.io gives you the contacts Mailshake cannot find.
- Hunter.io 対 Lemlist: Lemlist wins on creative personalization. Hunter.io wins on address quality.
- Hunter.io 対 Woodpecker: Woodpecker suits agencies managing many clients. Hunter.io suits list building.
- Hunter.io 対 Smartlead: Smartlead handles inbox rotation. Hunter.io handles the data that goes into it.
- Hunter.io 対 Saleshandy: Saleshandy reports in more detail. Hunter.io has the better email finder.
- Hunter.io 対 Klenty: Klenty plugs deeper into CRMs. Hunter.io is faster for quick lookups.
- Hunter.io vs Warmbox: Warmbox only warms inboxes. Hunter.io does not warm, so they pair well.
- Hunter.io 対 Maildoso: Maildoso builds infrastructure. Hunter.io fills it with verified contacts.
- Hunter.io 対 Manyreach: Manyreach charges per use for sending. Hunter.io charges per search credit.
- Hunter.io 対 Warmy: Warmy scores deliverability. Hunter.io keeps your list clean so that score stays high.
今すぐHunter.ioを使い始めましょう
Hunter.ioの主要な機能をすべて使いこなせるようになりました。
- ✅ ドメイン検索
- ✅ メール検索
- ✅ メール認証
- ✅ キャンペーン
- ✅ APIキー
- ✅ Googleスプレッドシートアドオン
- ✅ ブラウザ拡張機能
- ✅ AIライティングアシスタント
- ✅ 一括タスク
次のステップ： どれか一つの機能を選んで、今すぐ試してみてください。
ほとんどの人はドメイン検索から始めます。
5分もかかりません。
よくある質問
Hunter.ioのメールアドレス検索ツールの使い方は？
Open Email Finder, type the person’s full name and their company, then click Find Email. Hunter.io returns one address with a confidence score you can save as a lead.
Hunter.ioは無料で利用できますか？
Yes. The free plan gives you a set number of monthly searches and verifications with no card required. It is the easiest way to test the tool before paying.
Hunter.ioはどのように機能しますか？
It indexes work addresses published across the web, then matches them to a domain or a name. Every result carries a confidence score showing how likely the address is correct.
Hunter.ioは信頼できるサービスですか？
Yes. Hunter.io is a well established email finder used by sales and recruiting teams, and it only gathers addresses from publicly available sources.
Hunter.ioは本当に機能するのでしょうか？
In my testing, high confidence results land reliably. Accuracy drops on tiny companies with no public footprint, so verify anything scored below 90% before sending.
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