2. Ahrefs

        精品国产自在拍500部

        Ahrefs helps you learn why your competitors rank so high and what you need to do to outrank them.

        Start a 7-day trial for $7
        2,077 users joined us in the last 7 days

        The tools you get with Ahrefs

        We add new tools and features regularly.

        • Competitive Analysis

        • Keyword Research

        • Backlink Research

        • Content Research

        • Rank Tracking

        • Web Monitoring

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        • Organic Search Report

          Analyze your competitors' search traffic.

          See the exact keywords for which your competitors rank in organic search and the amount of traffic driven by each of them.

          Use the Top Pages report to see which pages send the most traffic to their sites. Use the Content Gap feature to uncover the keywords they rank for but you don't.

          We have data for 150 million keywords in the United States alone (+ more for over 150 other countries), so you get the best possible coverage with Ahrefs.

          Site Explorer tool

        • Keywords Explorer

          Thousands of keyword ideas, keyword difficulty and advanced metrics.

          Get thousands of relevant keyword suggestions from our mammoth database of over 3 billion keywords. Use the Keyword difficulty score and our advanced keyword metrics to decide which keywords to target.

          Keywords Explorer also shows you annual search volume trends and gives you some great insights into searchers' behavior and SERP ranking history.

          Keywords Explorer tool

        • Backlink data

          The best backlink checker tool in the industry.

          Ahrefs is proud to run the worlds largest index of live backlinks. Our robots constantly crawl 54 billion web pages, and every 15 minutes we update our index with the fresh data they report.

          Put any website or URL into Site Explorer to see all its backlinks and some useful SEO metrics.

          Advanced reports and handy filters let you dig real deep into the data that we have for you.

          Other reports in Site Explorer tool

        • Content Explorer

          Research what content works well in your niche.

          Put any keyword into this tool to see which content has performed best in terms of social buzz, number of backlinks and organic search traffic.

          Find all articles that mentioned your target keyword and use the "Highlight unlinked domains" feature to see which of these websites have never linked to you.

          Content Explorer tool

        • Rank Tracker

          Get accurate location-specific ranking reports.

          We track your desktop and mobile keyword rankings from any location and plot your full ranking history on a handy graph.

          You can set up automated ranking reports to be sent to your email address, so youll never forget to check your ranking progress.

          Rank Tracker tool

        • Alerts

          Monitor your niche for opportunities.

          Get an email notification whenever you or your competitors win or lose a backlink. This is a great way to track their PR and linkbuilding activities and your own, almost in real time.

          Set up alerts for any keywords related to your brand, business, product or service. Whenever someone mentions one of these keywords on their website, you get an email notification with a link to that page.

          This way you can also track who is talking about your competitors online, so that you can jump into relevant conversations and exploit these opportunities immediately.

          Alerts

        The best and most complete data in the industry powers Ahrefs' tools

        • Every day we crawl:

          5 billion
          web pages

        • Our index size:

          16 trillion
          known links

        • 170 million
          root domains

        • 3 trillion
          known URLs

        • Powered by:

          48 petabytes
          of storage

        • 65000 CPU
          cores

        Learn more about our xlink:href="#icon-arrow">

        More Ahrefs perks

        • 24/5 customer support

          Have a question, concern or feedback for us? Our support team is a quick chat or email away 24 hours a day, Monday to Friday.

        • Private Facebook community

          Take full advantage of insights from highly-accomplished SEO specialists and digital marketers in our customers-only community.

        • Tailored learning materials

          The marketing tutorials on our blog and YouTube channel, and in the Ahrefs Academy, often feature our tools. Unlock their potential with full access.

        • New features released regularly

          Our development cycle is fast. We frequently update existing tools and release new features many of which are heavily influenced by requests from our customers.

        Recommended by leading experts in marketing and SEO

        • When it comes to backlink analysis, Ahrefs is my #1 go-to tool. I've tested over 25 link analysis tools and none comes close to Ahrefs in terms of index size, freshness and overall usability. If you're serious about SEO, you need Ahrefs.

          Brian Dean founder of Backlinko

        • As part of our job at Authority Hacker, we test every SEO tool out there to try and determine which is the best. Because Ahrefs comes ahead in 99% of the cases, some of our readers are starting to call us biased. Please stop being good at everything, it's hurting our reputation.

          Gael Breton co-founder of AuthorityHacker

        • Ahrefs is a great tool. The data is fresh, the usability is fantastic and you guys keep adding great new features to the platform.

          Aaron Wall founder of Seobook

        • At Outspoken Media, we rely on Ahrefs daily to help us achieve great results for our clients. What makes Ahrefs invaluable to us are its intuitive design, reliable data, and innovative features. Ahrefs is a must-have for serious digital marketers and SEOs.

          Rhea Drysdale CEO at Outspoken Media

        • What I love about Ahrefs is their commitment to speed, design and innovation. The data is fresh, relevant, and granular enough to allow us to make very actionable decisions. I love that theyve made significant moves to continually innovate and add new features. Not only do they make us stronger as an agency, but theyve kept the entire SEO software industry on its toes.

          Michael King founder of iPullRank

        • We use Ahrefs mainly for its site explorer, and its immensely improved how we find link targets. We use it both for getting quick analysis of a site, as well as utilizing its extensive index when we want to dive deep. It's invaluable to have one tool that can do both of those things.

          Jon Cooper founder of Hyperlynx Media

        Used by marketers of esteemed companies

        7 days. 7 dollars. Full access.

        Our 7-day trial gives you full access to all tools and features of your chosen plan.

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        Learn SEO with Ahrefs