Ahrefs clickstream data. Click the Content Gap report. Ahrefs clickstream data

 
 Click the Content Gap reportAhrefs clickstream data  By identifying high-volume keywords where you already rank in positions #4–#10, you can focus your

Não tem de ser um profissional SEO para ter melhores classificações e obter mais tráfego. Click Next. With the launch of Site Explorer, Ahrefs stirred the stagnant field of backlink analysis and kick-started a new round of. Invited users remain free as long as they do not consume more than 5 credits each month. Ahrefs’ primary keyword research tool is called Keyword Explorer. You can filter by: Search volume – shows you how many times per month, on average, people in a given country search for your target keyword. SEO tools. Converttra. 02 billion web pages, 9. However, SEMrush packs more tools into the screen and you can access plenty of customer support resources right from the dashboard. It provides data for keyword research, niche monitoring, and even research your. The Keyword Difficulty score is based on a weighted average of the number of referring domains to the top 10 search results. We started from scratch and rebuilt the whole thing from the ground up, implementing many highly-requested features in the process. The first one is about comparing ranking fluctuations to certain events in the past, like an algorithm update. One of the tools you can bring Ahrefs data to is Screaming Frog, which happens to be one of. Legal info. Ahrefs is a premium tool and competitor data can only be viewed with a paid subscription. Back to our Infrared Thermometer example. Ahrefs Review: for strong backlink profiles and content tools. There are two types of traffic estimation tools: Tools that estimate total traffic: Visitors to your website can come from all kinds of places: search engines; forums; social media; etc. It’s one of the essential tools for SEO because it’s the only one that features search performance data straight from Google (although limited). 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. Ahrefs collects, processes, and stores large amounts of data for search marketing professionals. Ahrefs reports that “the reported proportion is based on real people’s behaviour which we monitor via clickstream. We’re powered by seriously big data. The Ahrefs site explorer is yet another competitive intelligence tool that lets you look at the backlink profiles of websites on the internet. Compare a website’s current and historical data. If the verification fails, keep trying until it works. The benefits are obvious: free, passive traffic to your website, month after month. However, KWFinder and KWTool both produce similar amounts of keyword suggestions compared to GKP. It needs to be discovered. These tools estimate the total amount of traffic from all sources. Ahrefs offers a few different pricing. Ahrefs and Semrush pricing Ahrefs. Look at their SEO reports. It is already the biggest database on the web, and it’s growing steadily. The Ahrefs Alternatives of 2023. If such data becomes unavailable, it will change the relationship that marketers have with search engines. Kostenlose SEO-Tools /Kostenloser Keyword-Generator. 0 tool, we can now get better estimations of the true traffic potential of the keywords we go after, and not just an arbitrary search volume number. published 27 October 2022 (Image: © Ahrefs) TechRadar Verdict Ahrefs gets much right for managing and growing your online presence, with an industry-leading link index, powerful features, and. 61%, Ahrefs at 72. The technology behind Ahrefs’ Social Media Bio Generator. Backlinks data. Use Google Search Console. Key information captured in clickstream data includes: At Ahrefs, we process tons of clickstream data to provide you with the accurate "Clicks" metrics to show you what percentage of searches actually result in clicks. This is common practice for data vendors and providers. This panel is responsible for over 2 million events each minute (billions of events per month) on the Internet which are recorded and anonymized to preserve user privacy. Winner: Tie. Completely free (but you get more out of it if you use Google Ads) Ahrefs Free SEO Tools. Ahrefs is a SaaS company. The customers now have access to a 70% bigger database. 30,000. Keywords that contain your seed in the order it's written. . The plugin regularly conducts content audits of your website and gives actionable suggestions on improving article performance for a target keyword based on Ahrefs, GA and GSC data. But we also calculated that the AWS costs would be ~USD 448 million for such a data center replacement. Ahrefs Clickstream Data is a powerful tool that provides valuable insights into user behavior on the internet. Ahrefs Keyword Explorer tool. Their keyword database has over 7 billion keywords in over 171 countries. That makes for more accurate and reliable search volume estimations, and also allows us to show a few other unique keyword metrics:. vidIQ is another freemium Chrome extension that adds additional data to the YouTube UI. Ahrefs Pte. Just search for a few keywords related to your niche, check a keywords ideas report, then add words like “best,” “review,” and “top” to the Include filter. One of our core values at Ahrefs has always been providing the best and the most accurate data for digital marketing professionals. In reality, Ahrefs uses cached data to optimize speed and prevent users from putting unnecessary strain on resources. Majestic Review:. It uses clickstream data directly from Internet Service Providers (ISPs) to get the most accurate search volume estimates. 9. Since the Ahrefs WordPress plugin focuses on content audits, it complements other SEO plugins rather than replaces them. 88% and MajesticSEO is just 53. Use Ahrefs’ Keywords Explorer. Fill your content calendar for weeks, months, or even years in minutes. Se "Överordnat ämne" för ditt sökord. Ahrefs has 20. At Ahrefs, we crawl pages according to a specific algorithm that ensures an efficient use of our resources without compromising the quality of data. Not to mention, Ahrefs’ data is of higher quality. The lab test data is more useful for testing since the CWV data is on a 28 day rolling average. One day, she gave up academe for all-things marketing. Third party tools get their numbers from GKP and clickstream data. We’ve compiled a list of the top 15 website traffic analysis tools to save you time and energy. Start using Ahrefs' Keyword Generator to find winning keyword ideas today. He uses his bleeding-edge knowledge of Google ranking signals for clients in USA and Europe. . Accurate keyword difficulty score; 1,000+ keyword suggestions; Supported in over 171 countries; Click metrics for. What’s new at Ahrefs? (Dec 2022) By Rebekah Bek. cc. 28. Make your workflow more efficient. Maile Waite, İçerik Müdürü & SEO, CloudApp. For the Netherlands, Ahrefs does assign a. Each tool has to make decisions about data storage and retrieval. Our free keyword generator can help you discover 150 keyword ideas for (almost) any keyword. Semrush competitive intelligence tools leverage multiple data sources, clickstream data, real-time search engine results analysis, and continually evolving machine learning algorithms to provide accurate and up-to-date marketing insights. 6. 1. Thanks to Ahrefs’ clickstream data on their new Keyword Explorer 2. They include our own collection of free SEO tools, as well as a few select third-party tools that we trust. These are some of the most interesting trending topics that caught my eye. This panel is responsible for over 2 million events each minute (billions of events per month) on the Internet which are recorded and anonymized to preserve user privacy. See moreBack in 2020, we had some issues with our keyword data quality due to the (now infamous) demise of clickstream data. But in the interest of keeping things brief, we’re sharing a couple of our favorites. . 2,500. It's a useful. Spy on your competitor’s organic traffic and rankings. ClickStream data gets a little technical – if you are interested, you can learn more about it here. 34K. Just enter up to ten words or phrases and choose from one of six keyword ideas reports. Clickstream is known as a click path, which is a sequence of hyperlinks and websites a user follows. S. Check out the resources below to improve your SEO knowledge with unique data and insights. Learn more about what actions consume credits. 1 2 3. Plus, the domain and backlink data are helpful. Ahrefs. This is the primary tactic we use at Ahrefs. Detta är den enda rapporten i sitt slag som förenar viktiga SEO-värden som länkar, organisk trafik och organiska. Support your E-A-T. These three things are “what Google looks for in a web page. I know and trust them, unlike Semrush, where I worked. Ahrefs estimates search volumes by analyzing clickstream data, which provides information on the number of clicks and impressions for specific keywords. So if you lack experience in SEO tools like Ahrefs, I have selected 11 simple and super actionable use cases that you can try right now and get immediate value from. In fact, their clickstream data allows us to identify the number of average monthly clicks your competitors receive for any given keyword, the percentage of searches resulting in a click. The average page’s age that ranks on the first page is 2+ years. Traffic Analytics reports are based on petabytes of clickstream data that comes from multiple proprietary and 3rd party data sources, Semrush’s proprietary AI and machine learning algorithms, and Big Data technologies. (known as Clickstream data). To do this, we can use two of Ahrefs’ core metrics: Keyword Difficulty and Traffic Potential. Seed keywords are the starting point of your keyword research process. Rank Tracker lets you monitor your Google rankings on desktop and mobile across 190 countries. It’s what people expect to find by using a keyword in a search engine. Because structured data helps Google to better understand what your pages are about, it may help them show up for more relevant search queries. Select “ Switch to expert mode ”. 4 billion of those keywords. A search term (or search query) refers to a word or set of words that a person enters on a search engine like Google to generate specific results. Plan, create, and publish. SEO-driven content marketing. Also known as spiders or bots, crawlers navigate the web and follow links to find new pages. In this guide, you’ll learn five advanced keyword research tips for finding untapped keywords. That makes for more accurate and reliable search volume estimations, and also allows us to show a few other unique keyword metrics:. This selection of free SEO tools will help you with various SEO tasks, such as keyword research, on-page SEO, link building, and more. Ubersuggest may have come a long way. Get ranking updates for desktop and mobile. Vs. It's relatively new tool, and it comes with both a free and a paid version, plus a trial of the premium features. Just enter up to ten words or phrases and choose from one of six keyword ideas reports. Weekly and monthly modes display the average of all days within a time period. Ahrefs Webmaster Tools are free for any website owner and consist of Site Audit and Site Explorer tools. What Is Clickstream Data? Clickstream data refers to the record of web pages a user clicks on and navigates through, essentially tracking the “clicks” a user. Product Blog. 4. Three tips on how to use your keyword data. Our backlink index is updated with fresh data every 15 minutes. ( Backlinko) 53. Cliques — mostra a média mensal do número de cliques nos resultados de. Screaming Frog: Best for. The tool can do all this thanks to advanced clickstream data. 200k+ SEO professionals across the world use it in their daily work. Here’s how clickstream data can augment or even beat Google’s Keyword Planner: Clickstream data isn’t limited to Google Ad keywords or keywords that Google or search enginesdoesn’t censor. Clickstream data is gathered through voluntarily installed browser extensions, plugins, and other applications. Historical data is limited according to your Ahrefs plan. The Google Keyword Planner provides 67. 73% accurate. No worries. Google has the information for the monthly search volume since they can measure how often someone puts that keyword into the search field and presses enter. g. Enter your domain in the Competitors section. Accurate search volume data from clickstream analysis: Ahrefs doesn’t settle for guesswork. Ahrefs Keyword Research Tool Pros: Ahrefs tool not only shows you the estimated monthly volume for a keyword but also tells you what the click-through rate potential is for that keyword based on clickstream data (Moz does this as well). A small team passionate about technology and SEO. Here you can set updates to ‘weekly’ or ‘daily’. When a user views data in any Ahrefs tool except Site Audit and Rank Tracker, they consume credits. Additionally, it efficiently analyzes vast clickstream data from 10 distinct search engines. Search Engine Optimization Explained. Semrush: Best for Power Users. Clickstream Data and. Med SERP-översiktrapporten i Keywords Explorer kan du se en överblick över de topprankade resultaten tillsammans med all deras SEO-statistik. ,. Ubersuggest: Best for Beginners. Keywords that contain your seed in the order it's written. [citation needed] A visitor's click path may start within the website or at a separate third party website, often a search engine results page, and it continues as a sequence of successive. Site Explorer – Ahrefs. Keyword Prioritisation (PLUS How to. To do that, Ahrefs crawls the web, stores tons of data and makes it accessible via a simple user interface. Feel free to choose UTF-8. Their sample size from this is tiny vs. 1. SEMrush. Semrush forwards the resulting set of data to a computing cluster and receives a computational model. I then took a look at the keyword data for “Coronavirus news”. 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. Redirect path and HTTP header checking. See how much traffic your competitors are getting. Återkommande frekvens — Ett unikt Ahrefs-värde som jämför vilket sökord som får fler upprepade sökningar, genom att använda en relativ skala. Import. There are 3 kinds of users you can have on your Ahrefs subscription: Inactive, Casual, and Power. Ahrefs estimates search volumes by analyzing clickstream data, which provides information on the number of clicks and impressions for specific keywords. Ahrefs Keywords Explorer: Best for Keyword Research and SERP Insights Ahrefs Keywords Explorer is a comprehensive keyword research tool that offers valuable insights to YouTube creators. Under Authorization, click Connect to. The ahrefs. Compared to other tools which are assuming arbitrary numbers from Keyword Planner, this is the only tool that shows you the real search volume! But there are two tools that estimate monthly searches using their own internal data… Moz and Ahrefs Clickstream Data. Find relevant keywords from our database of over 8 billion queries. For example, Ahrefs tends to provide more accurate estimates for specific keywords, especially long-tail or low-volume ones, thanks to its comprehensive clickstream data. The simplest way to generate content ideas is also one of the most useful: provide responses to the questions people ask about your product, your company, and your industry. After collecting data, Ahrefs indexes and organizes it within its database for efficient storage and retrieval. SEMrush is one of the most popular SEO tools on the market. With it, one can make custom filters based on various. Ahrefs. 12% of the time—a 56. Figure 1 – Architecture. As a result, choosing the right keyword research tool can feel like an impossible task. Ahrefs Keyword Explorer. 4. Wir bei Ahrefs mischen jedoch einige andere Datenquellen in unsere Schätzungen des Suchvolumens ein (einschließlich einiger Jahre historischer Clickstream-Daten), wodurch wir viele dieser Keyword-Cluster “entgruppieren” und für jedes einzelne Keyword ein eigenes Suchvolumen anzeigen können:. Clickstream is a sequence of events that represent visitor actions within the application or website. This month we’re introducing a bunch of new features: we now store robots. Ahrefs uses proprietary algorithms and information from Google Keyword Planner, Clickstream (Clickstream, 2021), and other sources. Ahrefs' SERP Checker shows you how much organic search traffic the top results get from all the keywords they rank for. Tim Soulo explains it in detail in this blog post. . 53. So, if you want to increase your chance of Google using your title tag, make sure to fit within 600px length, which is the limit for what SERPs can display. At Ahrefs, we split our data into multiple indexes. An exclusive Semrush Trial that lasts for 14 days, whereas Ahrefs stopped offering its 7-day trial for $1. 1. Domains that are less “popular” (ie. 2 billion keywords in 243 countries. Just enter up to ten words or phrases and choose from one of six keyword ideas reports. 96% of global traffic comes from. All base subscription plans come included with 1 power user. A Ahrefs é usada por marketers das principais empresas do mundo. Ahrefs’ SERP search tool allows you to see search results from any location in real-time without a VPN. S. Fill your content calendar for weeks, months, or even years in minutes. This means that if you are marketing on YouTube, Amazon, Bing or other search engines, Keyword Explorer is a real source of reliable keyword. It is loaded with valuable customer information for businesses, and its analysis and usage has emerged as a powerful data source. By processing large amounts of clickstream data, our YouTube Keyword Tool shows reliable search volumes for any keyword. 1. MyKinsta (MyKinsta Analytics) The MyKinsta homepage. Business, Economics, and Finance. Ahrefs also shows the estimated number of clicks keywords receive. Ahrefs' Rapid-fire Product Updates: April 2023. Go back to Search Console and hit “Verify. Ahrefs Keywords Explorer: Best for Keyword Research and SERP Insights. The sources are as usual: Google Keyword Planner, clickstream, and data. Site Explorer. If you haven’t already, make a copy of our content gap analysis template. Topping it all off, Ahrefs’ data comes from 10 major search engines. We have an excellent model for calculating monthly search volume of keywords, that combines data from Google Keywords Planner with clickstream data (more details here). After the analysis is complete, go to the “Backlink profile” section and click on “Backlinks”. Jumpshot's They'll mix in with data from other"new" clickstream data so your "gem" kw and niche info won't be identified as the super accurate data. This plan is best for SEO specialists and professionals in digital marketing. Grew its total number of keywords in the US database by 19%. The data is accumulated and approximated from the user behavior of over 200 million real internet users, and over a hundred. In other words, most data is not the most recent. By Eric Van Buskirk. Enter a competitor’s domain in the Target section. WebMeUp. Real-time data streaming involves collecting and ingesting a sequence of data from various data sources and processing that data in real time to extract meaning and insight. Ahrefs’ Social Media Bio Generator uses a language model that learns patterns, grammar, and vocabulary from large amounts of text data – then uses that knowledge to generate human-like text based on a given prompt or input. Here at Ahrefs, we model the CTR curve for every single keyword separately. Ahrefs ensures accurate and up-to-date metrics by using clickstream data every month to refine and narrow down volume numbers. Integration with other Ahrefs tools. Low competition. Because Clickstream data powers the Ahrefs Bing Keyword Tool, we're also able to show some other helpful SEO metrics for all keywords: Clicks : The average monthly number of clicks on the search results that people make while searching for the target keyword. But lab data is consistently tested based on the same conditions to make the test results repeatable. The price of the plan is $399 per month. ahref keyword explorer research tool. Get keyword ideas for ten different search engines, including YouTube, Amazon, Bing, Yandex, Baidu… Google is not the only search engine around; it’s merely the largest. November 8, 2023 19 min read. 9% fewer keyword suggestions than the average output from other major paid SEO tools. Kinesis Data Streams transfers the request to Kinesis. It. So the first step is to find competing pages in one of two ways: Search Google for your target keyword. Ahrefs offers four pricing plans which include: Lite: $99 per month when billed monthly and $83 per month when billed annually. With Ahrefs, it’s possible to pick any two dates when working with historical data. These Data Processing Addendum and its Annexes ("DPA") reflect the agreement between Ahrefs and Customer (terms as defined below), together referred to as the “Parties”, with respect to the Processing of Customer Personal Data (term as defined below) under the applicable terms and conditions, or other written or electronic. If you want to see search volumes and metrics for an existing list of keywords, click “Get search volume and forecasts. Whatever you’re planning to create, you need to make sure it’s something that will appeal to your target audience. For example, Google is missing data on 35% of the clicks for our post on keyword research. Word count – the number of words in a keyword or. Discover new keywords. It includes clicks, views, and related context, such as page load time, browser or device used. Ahrefs is a set of online tools designed to help you grow your search traffic and analyze your website and see its strengths and weaknesses in both content and SEO. Outgoing links report with link highlighter and broken link. (known as Clickstream data). It also shows traffic potential with the estimated number of click-throughs for your target keyword. 4. 6 billion searches per day. Compared to other tools which are assuming arbitrary numbers from Keyword Planner, this is the. I founded ClickStream. Clickstream Data by Aggregators & Data Brokers. We take pride in breaking new ground in cutting edge. Create and set up your Google Analytics account. With our new Data Studio connectors, you can build your own reports by blending data from different sources and visualizing everything in the form of reports and. We have hundreds of millions of search terms and large amounts of clickstream data. Just input or import a list of keywords, add multiple countries per keyword and tell us your competitors’ URLs. Clickstream is known as a click path, which is a sequence of hyperlinks and websites a user follows. Their sample size from this is tiny vs. But the official release of this new and improved Rank Tracker in August 2017 didn’t spark the end of our development on this tool. Follow these instructions to create your account correctly: Go to analytics. Extremely self-demanding in every aspect of her life. Mangools/KWFinder: Best Value. Upcoming features: Ahrefs Search – this will provide exclusive access to data from the Ahrefs search project. Annual subscriptions starting at $82/month (personal) and $832/month (agency). Historically this data has only been available to paid Ahrefs subscribers ($99/mo+) so this is a huge step forward as Ahrefs make that data available to all website owners. Here are some popular B2B marketing tactics worth considering—many of which we continue to use at Ahrefs. Many of these issues are grouped into cool visual Reports that are listed in the left-hand menu. Crawl your website for SEO issues that can hurt your rankings, including: Missing title tags and meta descriptions. I also like that you’ll also get access to more advanced metrics like: Return rate; Clicks per search; Percentage of clicks; Percentage of paid clicks. And one of those is Clickstream, the one Ahrefs uses. This is a tough one because both have strengths and weaknesses. Ahrefs, içerik pazarlama araç kitimin İsviçre çakısı gibi. 2. Ahrefs. However, if the keyword has a higher search volume than 10 within Organic Research / Keyword Research tools and you still see “N/A” in Position Tracking, PPC Keyword Tool or On Page SEO Checker, this could be due to. Moz, Ahrefs and SEMrush. The data could be from before the news broke about Jumpshot’s data going away. Go to the Websites tab. Part 1: Connect to the Ahrefs API. This bot can crawl any website unless disallowed, and prevents excessive load on website servers by limiting crawling to 1 request per 2 seconds by default. io is the best alternative to Ahrefs. Ltd. . 2. They have a huge keyword database with 19. According to a study by Ahrefs themselves, Google tends to overestimate search volumes by 54%. Ahrefs Keywords Explorer for YouTube. Other aspects of Keyword Explorer include using clickstream data to refine search volumes for keywords. Standout features. Keyword Research: The. Get your content on Google by submitting sitemaps. These pages are then added to an index that search engines pull results from. In the search results, it shows search volume, competition, overall keyword score, related queries, keyword stats, and the tags from the top-ranking videos. Export the data in seconds. Import the data into the template. So if you’re not yet an active user of Ahrefs’ SEO Toolbar, or just haven’t noticed these new features, then this post is for you. Keywords that contain your seed in the order it's written. The 7 Best Ahrefs Alternatives. Ahrefs Keywords Explorer . You can also check the “parent” options to see which keywords your keywords are under. g. People paying 10x more didn’t have access to much extra. Site Audit Thanks to Ahrefs’ clickstream data on their new Keyword Explorer 2. reading cooking swimming photography cats quizzes movies. The accurate and up-to-date data provided by Ahrefs can be the cornerstone of your SEO strategy, allowing you to make informed decisions and craft effective SEO campaigns. Hit the “SERP” button and compare your page’s SEO metrics to those that outrank you. Top SEO statistics. I would argue that this is the easiest step in web crawling. Keywordtool. Internal search engines are dedicated to a single website so that users can easily find content. Source: Cloudflare Radar. Find “evangelists” who may be interested in reading your new content by scraping existing website comments. 1 How Search Engines Work. You can use it to check backlinks, spy on your competitor’s keywords, and, of course, conduct your own keyword research. All of the course materials are available to Ahrefs users and a certification exam will be added in the future. We wanted to give all content creators the data they need to optimize their websites. Ahrefs, like SEMrush, is an all-in-one marketing tool set that comes with a better UI and a bigger database of backlink data, crawled pages, and more. This has been one of our most requested features since forever, and it’s finally here – Ahrefs now has Google Data Studio integration for Advanced plans and higher. Much of its functionality is similar to TubeBuddy. 7 (543 reviews) Starting Price: $99. The first step of a SERP analysis is to get a rough sense of the traffic opportunity and ranking difficulty opportunity. Max rows per report. Se över den nuvarande SERP:en och rankinghistoriken för de topprankade resultaten. Submit a DMCA takedown request via Google. The method outlined in this guide uses a PowerShell script to deploy Azure resources with. Accurate keyword difficulty score; 1,000+ keyword suggestions; Supported in over 171 countries; Click. With such an algorithm, it is not. For Firefox and Google Chrome, Keywords Everywhere is a browser extension. This means that we didn’t get enough clickstream data to calculate the volume of this keyword at the moment. 1. Ahrefs claims to have indexed 5. At Ahrefs, we split our data into multiple indexes. Ahrefs, a top-performing SEO software company, announces major updates to its keyword data. Keyword Research. Connect your Google Search Console to switch your Dashboard mode between Ahrefs data & GSC data. 24 months. The platform provides a broad keyword report to the user and relies on clickstream data to provide unique click metrics. The only catch: Is that you can only view data for websites you own, but even so – you get free access to TONS of actionable data as shown in my full Ahrefs review and. Our company’s SEO strategy is fully based on Ahrefs’ tools and tutorials. The map details the “roads the user went down,” or the places they clicked, and visited. This tool provides users with a thorough keyword report and generates distinctive click metrics using clickstream data. The API Gateway transmits the record to Lambda, where the data is standardized. Keywords Explorer by Ahrefs uses over 640 million YouTube keywords, which is phenomenal. Indexability issues. Ahrefs uses something called “ClickStream” which is a 3rd party data source. 7T backlinks which is updated every 15 to 30 minutes. Using this backlink data, Ahrefs calculates Ahrefs Rank, Domain Rating, and URL rating. The Google Search Console URL Inspection API is a way to bulk-check the data that Google Search Console has on URLs. Keywords Explorer helps you determine how hard it would be to rank in the top 10 search results for a given keyword. Ubersuggest:. Thus, for the keyword “best CRM software,” you can see that only 13% of clicks go to paid results. cc. Tools like Semrush and Ahrefs gather data from Google and clickstream providers. 1. You can search for your keyword and find local and global search volume, clicks, click. Ahrefs’ Certification Course.