Our crawler is the second most active after Google, and we update our backlinks database with fresh data every 15 minutes. Ahrefs has been the number one tool in our SEO tool belt for many years. The first piece of software is also the best. Translation: We’re discovering new broken links all the time. Backlinks are clickable links from one website to another. The Linkody Website Authority Checker is another DA analysis tool you should consider because it simplifies the backlink-checking process. Powered by industry-leading link data. 6. Backlink anchor text — Analyze anchor texts to see. Ahrefs shows you the complete picture of followed vs nofollowed links for any target. To do this, start by heading to Site Audit, click on + New project, and allow Ahrefs to authorize your account. Em poucas palavras, o Verificador de Backlinks da Ahrefs é uma potência capaz de praticamente qualquer tarefa de pesquisa de backlinks. There are dozens of metrics we can get from ahrefs to analyze, but in this tutorial, we’re going to focus on: ahrefs URL rank. Ahrefs shows fantastically detailed data with IP wise, Page Linking and more. MOZ LINK EXPLORER: World's best BACKLINK CHECKER with 40 trillion links. 5. Ahrefs. 3/ See keywords that bring you traffic. Keywordtool. You’ll need to run one using AWT to form the basis of your SEO audit. Find evergreen topics. number of referring domains. Ahrefs holds one of the largest backlink indexes in the whole world. It has a massive database and has the most active crawler, second only to Google itself, making it the greatest backlink checker tool available. Reply reply. WARNING: Fixing these issues can lead to an instant rankings boost!; Keyword. Site Explorer > Enter domain > Overview. Earlier in March 2023, we updated our keyword volume estimates with the intention to make them more accurate. Ahrefs will also show you problems such as broken links that could hurt your ranking. All active API v2 subscriptions will stop working on March 1st, 2024. It allows you to: Monitor your website’s SEO health. But specifically in the backlink area, Ahrefs provides a lot of tools to do backlink research. Estamos constantemente a evoluir a ferramenta e a introduzir funcionalidades e dados mais úteis para profissionais. Open the Google Search Console and. The Tom Turkey float leads the way down Central Park West during the Macy's Thanksgiving Day. Why organic search is important. Click the "Check Authority" or "Get Results" button to initiate the analysis. RankWatch’s free backlink checker tool is one of the leading easy-to-use tools that analyzes your backlinks at zero cost. Check if referring pages are available in Google index. Use Google Rich Result Test or Schema Markup Validator (this one is more thorough). Moz Link Explorer. Majestic SEO Does that translate into Majestic being the best all-around tool? Let’s find out… Which Backlink Checker Tool Finds The Most Links? The first test. It's now widely regarded as both a. Now, it’s time to put Ahrefs to the test. Use it to check your backlinks and survey your content. AWT packs all the power of Google Webmaster Tools, without the. Best Website Safety Checker. The goal is to have these websites be found and rank higher in search engines. , "dofollow" links with a higher domain rating (DR). This will give you a summary of your total number of backlinks, referring domains, and domain rating (DR). g. Ahrefs is clearly the winner here by a huge margin – a much larger margin than my initial test with just 3 domains highlighted. Earlier in March 2023, we updated our keyword volume estimates with the intention to make them more accurate. Ahrefs backlink profile – broken links. So unlike Ahrefs, SEMrush or Moz Pro, Majestic is all about backlinks. Ahrefs had 829/10,000 dead links. LinkMiner can be a good choice as it uses Citation Flow, Trust Flow, and. Google Search Console makes it easier for Google to crawl your site, and it will give you a lot of useful data for doing SEO. Enter a few industry-related "seed" phrases. Take note of common keywords or topics and try to copy successful methods on other pages. This filter shows the most relevant results by showing only the keywords where all of these websites rank but yours doesn’t. You also have the option to export existing links into . Carrying out broken link analysis (both internal and external) is extremely easy in Ahrefs. 1. Évaluation de domaine (DR) Rang Ahrefs (AR) Notre métrique propriétaire Domain Rating (DR) est extrêmement utile pour juger de la « popularité des backlinks » (force) d. The nofollow tag was originally introduced. co. 3. Samuel Edwards. It shows you the URL of the particular web page that is linking back to your website. Semrush offers a 16% discount if you pay in advance for a year. Reaction score. Go the Best by links report. Access to backlink checking tools is made possible through a user-friendly dashboard. Website Authority Checker Check the Domain Rating (DR) of any website to see the strength of its backlink profile. ·. 340. A new tab will open up, showing you the source code of that particular page. Enter a competitor’s domain in the Target section. Ahrefs. io. Pricing Enterprise. While Ahrefs is a paid service, you can opt for a free account to view which sites link back to yours and start your. Select an important goal and sort the table by conversion rate. If you pay monthly, Ahrefs ranges from $99 all the way up to $999. Ahrefs builds online SEO tools and creates free learning materials that help millions of website owners around the globe to get more traffic from search engines. 5 Find the most powerful backlinks of any site See how quicklyFilter backlinks in Ahrefs Step 2. Ahrefs also offers a toxic backlink checker that identifies links from low-quality or spammy websites. Broken Link Checker Find broken links to and from any webpage or website in seconds. If you only see a few pages with the “Discovered - currently not indexed” issue, try requesting indexing via Google Search Console (GSC). Their treatment of nofollow links changed in 2020 and now it’s more complicated. Inbuilt filters, in every report — Analyze the data you care about, and nothing else. Choose backlink(s) as favorite. Here are our favorite 3: 1. Our bot indexes fresh, accurate information. They treat nofollow as a hint, which means they can choose to crawl and pass value through them, or. August 8, 2023 2 min read. On the other hand, your keyword data is updated daily. It has all the key features of Ahrefs including rank. This is helpful for assessing the top-ranking pages and understanding why these pages are ranking where they are. . Here’s how: Open Ahrefs’ Site Explorer. Reason 1: The page doesn’t have any backlinks. Ahrefs shows you the complete picture of followed vs nofollowed links for any target. Semrush is our top recommendation for a backlink checker. You can integrate it with Ahrefs, Google webmaster tools (GSC), and Moz. Best Website Legit Checker. Ahrefs provides several reports to help you do backlink analysis. Did this answer your question? Find out how you can check whether backlinks found by Ahrefs is on a website. . SEMrush will give you a list of all referring domains. Scroll down and type the word “referral” in the search bar and press Enter on your keyboard. You can see sites that link to yours through Google Search Console. Tracking backlinks: Without a doubt, the best backlinks tool is Ahrefs. Simply put your site URL into Ahrefs Site Explorer, go to the “Backlinks” report, and click “Broken” to see the strongest broken backlinks of your website. Find the best websites with our Site Explorer tool. Backlink anchor text — Analyze anchor texts to see. To check this, you can use Ahrefs’ Site Explorer’s Broken backlinks report. Perform a backlink analysis and audit for any site. Translation: We’re discovering new broken links all the time. Ahrefs is a well know tool worldwide and is used by hundreds of thousands of users worldwide including the giants like Netflix, UBER, Linked In, Adobe, Facebook Etc. The best course of action is to be proactive and ensure that you either take charge of all link building activities yourself or use a reputable link building provider. Ahrefs’ Backlink Checker is my favorite tool for SEO. AhrefsPropel your search strategy with competitive intelligence, ROI-improving insights, and a complete view of your organic search performance. Filter by topic, quality, language, and a range of industry-standard metrics. No wonder it is one of the top Semrush alternatives. Ahrefs backlink checker allows an unlimited number of checks per day, but the number of backlinks you can view is limited to the top 100. If they have backlinks, this is a huge waste of link equity. The Ahrefs Certification Course will teach you how to use Ahrefs’ tools, data, and SEO metrics to improve SEO for your website. In short: Ahrefs is an SEO tool designed to help people get higher Google rankings. Go to “ Links ” in the left sidebar. Research your best-performing content. Get free link data. The Backlinks Anchors report gives users a list of the most common anchor text used in the backlinks going to the domain. Semrush, on the other hand, has a free version. GSC only shows up to 16 months of data by default, but Ahrefs will store and show data for longer than that – as long as your GSC account is connected. How To Complete A Backlink Audit Step By Step. Another favorite tool to check backlinks is SEOmoz's Open Site Explorer. For over 10 years now, Ahrefs has been crawling the web, storing and processing petabytes of data and fine-tuning a simple, intuitive user interface. It tells you how strong an entire website’s backlink profile is on a scale of 0 to 100. Ahrefs Backlink Checker: Ahrefs is a popular SEO tool that offers a comprehensive backlink analysis feature. For over 10 years now, Ahrefs has been crawling the web,. Ahrefs’ Broken Link Checker is powered by the largest live backlinks database in the industry. Check the sitemap: Your website's sitemap will list all of. Hidden within the criteria is the “formula” behind how to create evergreen content. According to a TrustRadius reviewer, “Ahrefs is simply the best out. Visitors can enter any domain into the backlink checker and receive a quick overview of the site’s link profile and authority. After conducting a backlink audit, it’s important to create a Link. It looks like we’re receiving a considerable amount of spammy backlinks with the anchor text “casinobonuspoker”. g ). 200k+ SEO professionals across the world use it in their daily work. Ahrefs Webmaster Tools has no limits for keywords, backlinks, or data history. Feb 3, 2023 8 min read. Los motores de búsqueda como Google utilizan los backlinks como votos de confianza para posicionar las páginas. e. Backlinks are links from other websites that. You can also use the Ahrefs Site Explorer to find broken links. 为了检查其他人或其他公司的外链，需要使用像Ahrefs免费外链检查类的工具。 仅需要输入域名或网址URL, 然后点击“Check Backlinks”(“检查外链”)。 你将看到外链以及外链域名（来自不同网站的链接）的总数，以及前100个外链。6. Moz Link Explorer, just like Ahrefs, is an efficient backlink checker you can use to enhance your business. It comes with a keyword research tool, a backlink analysis tool, and a website analysis tool. However, there are many other tools in the search engine optimization industry that do essentially the same thing as Ahrefs, and. And adds a few bells and whistles (like a rank tracker). If you’re more interested in a clean, modern, simple interface, Ahrefs is clearly easier to work with. Best free backlink checker tool sites for SEO. Compare top-level metrics for websites and URLs. Ahrefs also offers a toxic backlink checker that identifies links from low-quality or spammy websites. Best for: Backlink analysis and on. Ahrefs Backlink Checkerは世界最大のライブ被リンクインデックス（15兆以上）を持ち、あらゆるWebサイトの被リンクプロファイルを完全に表示します。. Web crawlers analyze your site as a search engine does, pointing out where you’re lacking and how to fix the problem. Hit the “SERP” button and compare your page’s SEO metrics to those that outrank you. Our crawler is the second most active after Google, and we update our backlinks database with fresh data every 15 minutes. we have a huge database of backlinks; and we have a huge database of pages with their monthly search traffic. If you’re using Ahrefs’ Keywords Explorer, choose a country from the dropdown. Ahrefs’ genesis dates back to 2010, when its founder and CEO, Dmitry Gerasimenko, created its first backlink index. Ahrefs. Check out the 7 best Ahrefs alternatives and see how they can provide the same or more than Ahrefs resources. If you're looking for a quick and easy way to pull Ahrefs' backlink metrics for up to 200 individual URLs, Batch Analysis is the tool you're looking for. Learn how to use Ahrefs' SEO tools and reports to improve SEO and get more organic traffic. Hidden links. In fact, many SEO strategists have been switching to SE Ranking from Ahrefs (mentioned next) because the backlink data is so good for off-page search engine optimization analysis for a. Altogether, Majestic is a very powerful SEO platform and their backlink tools allow for an excellent and deep range of insights on competitor link behavior, which you can then use for your own. Ahrefs, one of the most renowned SEO tools available in the market, was founded in 2010 by Dmitry Gerasimenko and is used by a variety of companies, including Netflix, LinkedIn, Uber, Pinterest, and Facebook, just to name a few. They are winning on ~76% of domains compared to Majestic SEO’s ~24%. SEO . How to Use Ahrefs' Backlink Checker | Ahrefs TutorialsChecking for any inbound and outbound links is crucial for your business. Advanced Link Filtering. SE Ranking is an affordable Ahrefs alternative with a trial version for free to test out the tool. SEMRush: Best Ahrefs Alterntive. Check any website, URL or subsection to see actionable and insightful SEO metrics: Number of referring domains. is integrated with Ahrefs to deliver the best results, the tool does more than just showing you a list of your site's backlinks. Linkody is a backlink analysis and management tool that helps users track their link-building campaigns and monitor their backlink profiles. Request indexing. With the world's biggest index of live. Advanced Link Filtering. Ahrefs is a popular SEO and backlink analysis tool that provides insights and information to help improve a website's search engine ranking. One of the main reasons Google stopped showing PageRank is the influx in link spam it. And it’s totally free! With Ahrefs checker, you can check any website, URL, or subsection to see. If you're looking for a simple explanation of how to use the Ahrefs backlink checker tool, then this video is for you! Learn how to develop a superior. And More. It quickly became the best backlink analysis tool that fuelled its growth. Imagine you're doing a manual review of the backlinks pointing at your website: There are times where you would want to click through to one of the links and find out exactly where it is. Ahrefs. Ahrefs —for SEO, search ads, and content marketing. In 2021, Google’s Gary Illyes said on Twitter that redirect signals consolidate permanently to the new location after one year. 1 day ago · Gov. Semrush and Ahrefs provide lots of valuable suggestions with their site audit features. SEMrush is a content marketing SaaS platform that also reports on the SEO performances of a site. Broken Link Checker Find broken links to and from any webpage or website in seconds. Learn more about this feature here: followed and nofollowed links — The more quality followed backlinks a site has, the more trustworthy it is in the eyes of Google. These tools can help you to identify: The number of backlinks pointing to your website; The quality of the backlinksAhrefsBot is a web crawler that powers the database for both Ahrefs, an online data toolset, and Yep, a revenue-sharing web search engine. It is a paid tool and is considered one of the best SEO tools on the market. Below the calendar we get the table of links found this time sorted by how long ago they were found. 7. Link Explorer is a popular tool that allows you to check backlinks for your own website or your competitors’ sites. competitor_ahrefs_clean_dtypes = competitor_ahrefs_cleancols. AhrefsIntroduction to Spammy Backlinks Traditional spam links are most often attributed to the 3-P industries: Porn, Pills & Poker. Here are more features that make Ahrefs’ Backlink Checker special: See followed and nofollowed links — The more quality followed backlinks a site has, the more trustworthy it is in the eyes of Google. Keyword database update + improving search traffic estimations. Click on the URL sources tab and check Backlinks as a URL source in addition to the default settings. This tab lets us find the latest backlinks Ahrefs have found for the entered domain. Moz Pro. The quality, quantity, relevance, authority, and anchor text of the backlinks are one of. However, Moz needs to provide a more in-depth backlink analysis than Ahrefs. Ahrefs is a tool that can be used for keyword research, link building, and competitor analysis. The free tool above shows your website’s “authority” as calculated by Ahrefs (i. Ahrefs. Now, it’s important to note that a sudden increase in referring domains could be a good thing. You can reach out to those domains to regain those lost (or deleted) links. It is another quality backlink checker with great insight features you will want to explore. JS Execution Time Test 79% of top 100 sites passed. Find out how much traffic your pages are. If you want to see when we first and last crawled a URL, you can check the “Best by links” report in Site Explorer. However, there are many solid and affordable alternatives to Ahrefs’ backlink audit tools. From the basics like rank tracking to the pro-level backlink insights Ahrefs allows us to be more efficient and more effective SEOs. One way to check backlinks is by using Google Search Console, a free tool provided by Google. The nofollow links do not influence the search engine rankings of the linked URL as Google does not transfer PageRank or any other signals across them. You can use GSC or AWT. Option 2: Check Toxic Backlinks Manually. 99, billed monthly. Kathy Hochul said there was “no indication of a terrorist attack. You’re now going to examine the backlinks for this page (and any other relevant pages you found) one by one. With the world's biggest index of live backlinks (over 15 trillion), Ahrefs Backlink Checker will show you the most complete backlink profile for any website. domains 2. pretty insane!1. Based in Singapore, Ahrefs is a software company that develops SEO tools and free educational materials for marketing professionals. See domain and page-level metrics for any target. To use the backlink features, login to Semrush, select ‘Backlink Analytics,’ and type in the name of the domain you want to investigate. Start by identifying your main keywords and search them on Google to see which websites come up. See your Google Search Console data directly in Ahrefs. Look for irrelevant redirects. With it, by default, you can also monitor backlinks for any tracked website. 3. Like Ahrefs, it offers multiple pricing plans and caters to different types of users. Once you’ve created a project, run your backlink audit. Ahrefs’ Domain Rating (DR) is a measure of the strength of a website’s backlink profile. ”You can check backlinks in Google Analytics 4 (also called referrals) in the Traffic acquisition report under Acquisition. At link buildings: Number of Links per Day . What is Domain Rating (DR)? DR domains mean the Domain Rating of a website’s domain. The Ahrefs Alternatives of 2023. Semrush’s site audit tool is easier to use than Ahrefs and can automatically provide you with a simple list to follow. Ahrefs is known for its backlinks and SEO analysis — but how does it compare to the rest of the market?. 1. The 300 top backlinks are sorted by their quality as measured by Trust Flow and Citation Flow, two Majestic SEO metrics that assess. You can also use them to analyze your competitor’s website so you can make modifications to your site and improve its ranking. Ahrefs is a popular SEO tool that’s widely touted for its ease of use. On average, a keyword that is in the top 30 can enter into the top 10 Google results. The Backlink Checker from Seobility gives you an easy way to check the backlink profile of any website for free, including those of your competitors. 3. 2. Total links: 31; Valid links: 15; Broken Links: 16; Best Strategies of Using Free Backlink Generator Tools A. WebCEO’s Toxic Pages report makes it easy to determine which backlinks are helping your search credibility – and which are. 9. This report can help you when building backlinks. Quality backlinks can help you outrank your competitors and get you additional referrer traffic. Get automated email alerts about your. You can check for spammy anchor text with the Ahrefs anchor test map tool. Ahrefs is an expensive product but you can check backlinks. Ahrefs: Humble Beginnings and A Sneak Peek To the Past. You will see your referral traffic aggregated. Ahrefs is a leading SEO software suite with a robust list of features, including backlink analysis, keyword research and technical SEO audits. Check for 100+ SEO issues. Nombre de backlinks. It offers valuable data about a website’s organic search performance, including information on backlinks. For all other types of businesses, there is a 20% discount on the annual subscription. Find Keywords to Rank Well on Google and Etsy. To do this, we go to the "Backlinks" section and search for the domain we are interested in. pages that have a high authority already, or from pages (or websites) that have a good chance of gathering high-quality backlinks in the near future. Free Backlink Checker Tools: 1. MOZ had 1761/10,000 dead links. It’s a full SEO software suite with features to help you with keyword research, on-page optimization, and lots more. Once you’ve established there’s been a Google update, you’ll need to check its date against your total organic traffic to see if there’s been a drop at the same time. You can even the risk free14 days trail to make sure it suits you or not. In the free version of the tool, Ahrefs shows you Top 100 backlinks, Top 5 anchors, and Top 5 pages. Norton Safe Web. Step 2: Results analysis. Even better, type in common negative SEO anchors, like “poker”. Pair that with world-class data and an excellent UI, and it’s no wonder that Ahrefs has established itself a leader in the SEO software space. Here’s how its interface looks like;Ahrefs is an SEO software suite that contains tools for link building, keyword research, competitor analysis, rank tracking and site audits. Backlinks provides advanced filters that make it easy to identify the best link opportunities for you. It should redirect, and you should see a 301 response code on the toolbar. Local SEO. Ahrefs has an extensive database of backlinks, updated every 15 minutes. Ahrefs Tops in Keyword Research. Sidenote. Semrush Backlink Audit 6. 0. The columns are cleaned up, so now we’ll clean up the row data. The Moz Pro Link Explorer is one of the backlink analysis tools that every serious digital marketer should have in their toolkit. You can check both the UR and DR of a site using our Site Explorer or Toolbar, or just the DR using our free Website “Authority” Checker. Backlinks refer to the incoming links only. The first step is to check your backlink overview in Ahrefs. SEOQuake. Los backlinks (también conocidos como enlaces inbound o enlaces entrantes) son enlaces de una página de una web a otra. And it ranks number one among Ahrefs alternatives. And adds a few bells and whistles (like a rank tracker). Wrapping It Up. The Monitor Backlinks SEO Backlink Checker Tool is a free SEO tool that allows you to check the best 300 backlinks . 1. Here’s an easy way to find them: Go to Site Explorer. Backlinks help you get into Google’s good books, as they’re one of the top three ranking factors. First, you need to find irrelevant 301 redirects. David Stein, VP of Content and SEO, Wunderman Thompson. — Gary 鯨理／경리 Illyes (so official, trust me) (@methode) July 21, 2021. For example, if the delta for this number is +14. Backlinks checker free allows you to retrieve the top 100 backlinks pointing to any website or web page. The HOTH’s FREE Backlink Checker Tool is one of the easiest ways to conduct link research on your competitors and discover what you can do to boost your site’s SEO. We’ll show you how to see your backlinks, but make sure to read the next sections. The backlink tool includes historical data, anchor analysis, new/lost links, and more. Ahrefs Backlink Checker also allows you to sort and filter backlinks by language, type, platform, domain range and URL rating. Here are more features that make Ahrefs’ Backlink Checker special: See followed and nofollowed links — The more quality followed backlinks a site has, the more trustworthy it is in the eyes of Google. But let’s say that it takes you three months to build that many links. 6. Here at Ahrefs, we have a website authority metric of our own called Domain Rating. June 1, 2021 9 min read. The software will take you to the backlink report, where you can find referral reports. Even if you get the paid version, it. Ahrefs offers a vast database of keywords and backlinks that can be used to gain insights into your competitors' strategies. The higher a website’s Domain Rating (DR), the stronger and more authoritative it is. Find out why SEOs love Ahrefs and learn about the unique things only Ahrefs can do. Moz – Yes, a 75% discount. Reach out to those linking to the dead resource and ask them to link to you instead. For a rough idea of how many backlinks you’ll need to crack the top 10, check the Keyword Difficulty (KD) score in Ahrefs’ Keywords Explorer. Dashboard-based embedded webpage preview. 1) Configure XPath Custom Extraction. While you're completely entitled to stick with Ahrefs, if you're willing to test it out, it would likely over exceed your expectations. com -> Outgoing links -> Broken links. View all your backlinks. 1. By simply plugging the potential site from the HARO query in Site Explorer, you can bring up a quick overview of the site’s metrics, including the Domain Rating (DR) and traffic. Majestic. 4) Raven Tools. io is the best alternative to Ahrefs. But generally speaking, it refers to the technical SEO health of your site. When it comes to SEO toolkits, Ahrefs is by far the most popular option. Then go to the Backlinks report (and add a dofollow filter). See all your competitor’s backlinks. Enter some of the competitors’ URLs. Ahrefs is a tool that can be used for keyword research, link building, and competitor analysis. You probably don’t need to do this if you’re using a different website platform like Shopify. Semrush. The pro version now has an added feature allowing you to check backlinks to your domain or any individual page. If you’re using our SEO Toolbar, click the extension icon in your browser, toggle “SERP tools” on, then choose a location in the “Local search simulator” section. If you have any questions regarding the anchor texts mentioned in the Backlink Audit tool such. 16/04/2018 – Extra column “Destination page” added when performing a full domain backlink check. 97 seconds and is over the average loading speed which is 5 seconds. It gives you access to all the key tools typically needed for a SEO project: keyword research, backlink analysis and site auditing. Here are 10 comparisons these professionals highlighted regarding Ahrefs and Moz as domain authority checkers: Ahrefs Has the Edge With its Visuals and Trend Tracking. To check for toxic backlinks, you can use a backlink checker tool like Ahrefs or SEMRush. Type or paste the URL of the web page you want to check into the provided field. To check the authority of a website, you can use tools like Moz, Ahrefs and Semrush. Backlinks come with some additional metrics, like domain. Weak SEO means less organic traffic from the search engines. In your Google Analytics account, go to Reports→ Acquisition → Traffic acquisition. Most of the features inside Ahrefs are designed for marketing professionals. Ahrefs 2. Backlinks provides advanced filters that make it easy to identify the best link opportunities for you. Ahrefs is a juggernaut in the SEO game; its Backlink Checker tool is only one piece of its entire suite of keyword research, competitive analysis,. Ahrefs’ Backlink Checker. In all honesty, this functionality has been in the pipeline for a while. Use Ahrefs to step up your SEO and backlinks like a pro! A step-by-step guide to analyzing a site’s SEO and Backlinks using Ahrefs13. It’s the third most active crawler after Google’s and Bing's, visiting over 8 billion web pages every 24 hours and updating its index every 15–30 minutes. " Choose an interval and hit “Add. Links from a page are called outgoing links (but at the same time, they are backlinks for the linked pages). Ahrefs is one of the top backlink analysis tools with one of the best. Resources.