How is ahrefs domain rating calculated. The higher the score, the better that website’s ability to rank. How is ahrefs domain rating calculated

 
 The higher the score, the better that website’s ability to rankHow is ahrefs domain rating calculated In the Performance chart, toggle the Domain Rating metric on to track your target’s DR over time

Here’s how we calculate this metric in simple terms: Look at how many unique domains link to the target website; Look at the "authority" of those linking domains; Take into account. Well, the algorithm used by Ahrefs to calculate DR isn’t so different from Majestic’s algorithms for TF and CF. Take note of the Domain Rating values for each of the linking domains. Take note of. Refer to Principles of Domain Rating calculation for more information about Domain Rating. A domain Rating (DR) metric is used by Ahrefs to calculate the strength of a website's backlink profile. 1K for the last 30 days, this means that the target has 1100 more linking domains than 30 days before (note - bigger numbers like this one are rounded in the dashboard). They refresh their data every 15-20 minutes. Ahrefs. domains. ” The names are different, but they serve the same purpose. Enter 5 competitor domains to see how your website authority compares to theirs. Here at Ahrefs, we have a website authority metric of our own called Domain Rating. It ranks a domain’s link building prospects by Authority Score and. To calculate keyword difficulty for any keyword Ahrefs gives top priority to the number of referring domains that the top 10 ranking pages have. It doesn’t take into account any other variables whatsoever. While limited compared to a paid Ahrefs account, they’re still immensely valuable for anyone who’s. A website with a higher DR is more likely to rank higher in search engine results pages (SERPs) for relevant keywords. Especially since Moz crawler is horrible, slow and outdated so it's finding a fraction of the links Ahrefs is. Total search traffic potential. Step 1. The higher a website’s Domain Rating (DR), the stronger and more authoritative it is. The quality of the links doesn’t affect your DR ranking, either. 1K for the last 30 days, this means that the target has 1100 more linking domains than 30 days before (note - bigger numbers like this one are rounded in the dashboard). To calculate this metric, take the total number of visits you have. Domain Authority Vs Domain Rating: The Main Differences. While these measurements are helpful, recollect that sites don’t rank exclusively due to. SE Ranking: Best for Small Businesses. com の Domain Rating は 91 です。. The authority of linking domains. Broken links. com’. Permanent increase to your Ahrefs DR. Number of referring domains. If you’re unfamiliar with PageRank, it’s complicated—but most bought links will pass PageRank. e. The Ahrefs Alternatives of 2023. ” Bucket #1: Sites with some. 7/ Can Moz Domain Authority Decrease? See how much traffic your competitors are getting. Estimated organic search traffic. Domain Rating = AHREFs. And it’s based on the number and quality of a website’s backlinks from different domains or sites. The higher the domain rating, the more link juice your website receives. Ubersuggest:. Here’s how we calculate this metric in simple terms: Look at how many unique domains link to the target website; Look at the "authority" of those linking domains; Take into account how many unique domains each of those sites link to; Apply some math and coding magic to calculate “raw” DR scores;. The code at the end will let Ahrefs know to exclude your domain, so it doesn’t show up in the results. Use this report to find the highest-value backlinks in your portfolio or your most common referring domains. Moz. Moz Domain Authority is based on a machine-learning model that considers over 40 factors, such as the number of total backlinks, the quality of backlinks, and the overall linking root domains. That is why, to calculate Keyword Difficulty, we analyze the search results for a keyword and look at the number of referring domains the top 10 ranking pages have. The study. Semrush: Best for Power Users. Semrush: Best for Power Users. To calculate domain rating, Ahrefs looks at: How many unique domains link to your website. Nutze interne Verlinkungen um die “Autorität” wichtiger Seiten zu verbessern. DR or Domain Rating . 1. It tells you how strong an entire website’s backlink profile is on a scale of 0 to 100. DR 0–20: 20 ref. First, it factors in the number of different websites that link to your domain. Domain Authority is a domain score developed by Moz to predict a website’s chances of ranking on search engine result pages (SERPs). Then, input the URL of the competitor’s website, press “Enter,” and navigate to the “Backlink” tab. Ahrefs analyzes billions of web pages and assigns each one a score between 0–100, with. Domain Rating. Both Have Strengths in. io. Ahrefs found similar results: “Top-ranking pages do tend to acquire more backlinks (and at a faster pace) than the pages that rank below them. It is simple to improve the domain authority and page rank, but an SEO can use some effective strategies to boost the website ranking in the search engine results. It uses Ahrefs’ Domain Rating algorithm to calculate how many backlinks you have and then compares those numbers with other domains in your niche to determine their relative strengths. You’ll notice that this makes the list more compact. 36%. Domain Rating (DR) URL Rating (UR) Ahrefs Rank (AR) Number of backlinks. Without high-quality referring domains linking to your target web pages, you are in danger of losing potential traffic, engagement, and sales. However, Moz scores DA using factors such as the linking root domains, the number and quality of. This is determined by quality and size. The higher a website’s Domain Rating (DR), the stronger and more authoritative it is. Cool. They include our own collection of free SEO tools, as well as a few select third-party tools that we trust. This also means that while Site A has less pages crawled compared to Site B, due to the fact that the proportion of errors is lower for Site A, its Health Score is higher. Crucially, Ahrefs uses its own proprietary ranking called “Domain Rating”, instead of Moz’s “Domain Authority” algorithm. Ahrefs will start tracking data and will send you regular updates. If we examine Ahrefs. Backlinks: number of backlinks detected by the Ahrefs crawler. With Ahrefs’ new calculation of DR, it is likely to become much harder to pass a site off as having a strong backlink profile. The free tool above shows your website’s “authority” as calculated by Ahrefs (i. Plug your domain into Ahrefs’ Site Explorer and look for the referring domains graph: Again, despite the clear correlation, a single graph doesn’t necessarily reflect your SEO success. In all cases, a scale from 0 to 100 is used. As a rule of thumb, a higher Domain Rating implies a more authoritative website. e. Ahrefs uses a complex algorithm to calculate Domain Authority. It ranges from 0 to 100, with higher scores indicating stronger authority. Ahref is a competitor analysis and paid keyword. Analyze the top-ranking search results. Domain rating. But Google does use PageRank. The DR takes into account the number of links that link back to a website. The Domain Authority (DA) metric is built on Moz's industry-leading web index trusted by SEO professionals worldwide. Domain Rating from Ahrefs, Domain Authority from Moz, and Trust Flow from Majestic are all tools that try to figure out what Google is thinking. 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. 我们全面的数据使我们能够对网站在 Google 中的自然搜索流量进行可靠的. It runs on a scale from zero to a hundred. Here at Ahrefs, we have integrated keyword rank checking functionality into 3 core tools: Site Explorer. However, you. It looks like this: How to calculate the Domain Rating of a website? Like Moz, Ahrefs also uses its built-in capabilities to calculate a website’s Domain Rating (DR). Ahrefs Rank (AR) Domain Rating (DR) URL Rating (UR) Number of Domains. A domain authority (DA) score is an automated score developed by Moz that's produced by an algorithm that judges the strength of a website in terms of its ability to rank. Annual subscriptions starting at $82/month (personal) and $832/month (agency). It’s developed by Ahrefs, a data-driven marketing toolset powered by a huge index of backlinks, keywords, and content. Depending on the number of high-quality backlinks from unique domains, ahrefs can. Semrush. DR vs DA (Summary) Domain Authority (DA) and Domain Rating (DR) are two of the most prominent metrics that SEOs use to understand website authority. . 1. Example 2 We have a Top Level Domain (TLD) of , subdomain of and the subdirectory of. Domain Rating is a metric tool developed by Ahrefs to gauge your website’s backlink profile. Filter for low-competition keywords with the KD filter (KD < 10) Add words like “buy” and “cheap” to the “Include” filter. In plain English: if a domain rating is. Ahrefs only include the first link from a unique domain. com. Ubersuggest: Best for Beginners. 1. DR diberikan pada skala 0 hingga 100, di mana nilai yang lebih tinggi menunjukkan otoritas yang lebih besar. Try our free SEO Checker. Influencing Factors. 1. But there’s more to it. This tool adds to the company’s other main products that focus on keyword research, link building, and competitor. It represents the strength of the website’s backlink profile on a logarithmic scale from 0 to 100, with the latter being the strongest. Ahrefs has the second-highest starting price on. At Ahrefs, we call this metric the Domain Rating (DR) and you can check it using our Website Authority Checker. Domain Rating (DR) and URL Rating (UR) are the metrics Ahrefs uses to rate the backlink profile of a website. Use the interactive graph to see how traffic has progressed both globally and locally in 171 countries. Your score is relative to the scores of other websites on the internet. The free tool above shows your website’s “authority” as calculated by Ahrefs (i. So here I am to help you to increase your website's backlinks and domain rating. URL ratings in Ahrefs are calculated using a proprietary algorithm that analyzes various data points. It’s important to understand that these are just tools, so you’ll want to take these ratings with a grain of salt. Choose the “Phrase match” keyword ideas report. But by and large, the trend in those graphs is undeniable. It is a score that ranges from 0 to 100, with higher scores indicating a stronger and more authoritative backlink profile. Personally, I. The Semrush Authority Score is a metric that measures a domain’s overall SEO performance and quality. See how well your website ranks compared to other websites in the Ahrefs database (based on the size and quality of their backlink profiles, or domain ranking). And SEMrush’s study agreed as well: “The higher the domain’s position on the SERP, the more referring domains it has. Use our tool to get your website’s Domain Authority (DA), Backlinks, and Referral Domains. At its core, Web Explorer lets you search through our search engine’s ( yep. LinkDaddy Domain Authority Checker will calculate the strength of specific pages. Domain Rating (DR) is a metric that shows the strength of a given website’s overall backlink profile. 开始吧。. Domain Rating shows the strength of a given website’s overall backlink profile. Use Domain Authority when comparing one site to another or tracking the "strength" of your website over time. Here at Ahrefs, we have our own metric to measure the authority of the page. Moz Domain Authority and Ahrefs Domain Rating have a number of things in common. Domain Authority between 50 and 60 must be rated as good. Dead pages. But generally speaking, it refers to the technical SEO health of your site. And because each of these brands uses its own unique calculation and link indexes, your website’s scores could vary widely for each metric. You can calculate domain authority score with the help of free tools available online. What is link exchange? Link exchanges are a quick way to receive backlinks. Search visibility. Additionally, Domain Authority is essentially calculated on a curve. Ahrefs all-in-one SEO toolset can help users with: Competitor research: unveil competitor's organic keywords, backlink strategies and PPC keywords. Domain Rating is a useful metric that can help you assess the strength and authority of your website’s backlink profile. I find that pitching to companies that have a DR higher than 50 is the sweet spot. Generally speaking, each domain splits its rating equally amongst the domains it links to. DR is rated on a scale of 0 to 100, where a higher score indicates more authority. Ahrefs developed its own metric called Domain Rating (DR), which runs on a scale of 0 to 100. In plain English: if a domain rating is. In the Performance chart, toggle the Domain Rating metric on to track your target’s DR over time. The easiest way to know your site’s DR is to perform a search on Ahrefs domain rating checker. It runs on a scale from zero to a hundred. DR summarises a website’s or URL’s strength by measuring the backlink profile on a scale of 1 to 100. Citation Flow does not take into consideration the quality of. For example, if the delta for this number is +1. Boost your site’s search performance with our free SEO Checker. Domain Rating (DR) and URL Rating (UR) are the measurements Ahrefs uses to rate the backlink profile of a site. This metric has the highest correlation with rankings. Depending on the DR checker you are using, such as the Ahrefs domain rating checker, the score of the typical domain authority falls somewhere between 1 and 100. Serpstat is a little more affordable, whereas Ahrefs is more expensive. However, you could generally view the following as similar to Citation Flow: Moz’s DA (Domain Authority) Ahrefs’ DR (Domain Rating) Citation Flow Weaknesses. Moz Domain Authority, Explained. It runs on a scale from zero to a hundred. Domain linking. Because of. Let’s look at the rise first. Use the interactive graph to see how traffic has progressed both globally and locally in 171 countries. 2. It is the best way to increase domain authority, and you can do it yourself. Now, DR or Domain Rating was created by Ahrefs. It’s important to note that Ahrefs’s proprietary ranking is called domain rating (DR), and is also scored as 0-100. DA is a metric used by Moz to track the ranking strength of a website. To calculate the UR. Number of keyword rankings. Toggle the “Any word. com. See full list on ahrefs. In this guide, we’ll cover: Types of organic search results. A Domain Rating score ranges from 1 to 100, with higher scores corresponding to a greater ability to rank. This is definitely an unlinked mention worth. rankingsAugust 8, 2023 2 min read. Sometimes also referred to as SERP visibility, it’s the SEO version of one of. However, when many SEO professionals use the term “keyword difficulty,” they’re referring to the broader concept of. Analytics. Calculated as a combination of the quality and quantity of backlinks that. 研究自然流量和关键词. 除了Ahrefs是强大的搜索数据来源外,它们还是我的最佳工具之一,因为它们可以听取用户的意见并不断改进他们的工具。. Still, for Digital Ocean, it took them one year to grow from an 87 to an 89. Rezultatem jest wzrost sesji i przychodów o 170% rok do roku odkąd zaczęliśmy go używać. Ahrefs Domain Rating. You can use the Ahrefs platform (or Semify’s white label dashboard!) to determine the Domain Rating of any site and take a closer look at the backlinks being considered. Although we don't know the exact algorithm of ahrefs' DR, it is calculated by looking at multiple essential factors, including referring domain, linking root domains, domain age,. You will notice a great boost in Ahrefs Rank, UR, Referring domains, and Total Backlinks [FREE OF COST]. It represents the strength of the website’s backlink profile on a logarithmic scale from 0 to 100, with the latter being the strongest. The higher the number the better. Domain Authority = Moz. . Moz created the Domain Authority metric to help businesses figure out where they may rank on search engine results pages (SERPs). Simply put, Domain Authority is a score used to predicts a website’s ability to rank on SERPs on a scale of one to 100. 1. Split a URL into 3 columns for HTTP protocol, root domain, and URL slug; Split a list of comma-separated values into multiple columns; Split a root domain into 2 columns for domain name and domain extension (e. It features data straight from Google, so many SEOs believe it’s the most accurate source for some metrics,. Semrush has a handy tool that analyzes the text on a single page and scores it on a scale from 1 to 10. For example, if you use Ahrefs, you can go to its “Site Explorer” section. The higher a website’s Domain Rating (DR), the stronger and more authoritative it is. Just copy-paste the competing URLs in our Batch Analysis tool and we’ll generate a report with useful metrics such as: Ahrefs Rank. Ahrefs does not have a PageRank equivalent, but URL Rating (UR) is the closest option. Ahrefs’ Domain Rating (DR) is an indicator of a domain’s traffic-generating potential, as it takes into account both its backlinks and the number of referring domains. Referring Domains Report. It considers the number and quality of internal and external links pointing to a page. While the exact details of. Semrush is one of the top digital marketing tools to perform site analysis, keyword research, competitor analysis, content marketing, and marketing campaign management for businesses. The scores are measured on a scale of 1-100. It’s called URL Rating (UR), and it is calculated in a fairly similar fashion to the original PageRank. Still, it’s not the same as Domain. On top of that, we’ve also changed the design of the hreflangs list to a table format, which makes it easier to scan and spot issues. Domain Rating is a comparative metric (like Moz’s DA) that compares the strength of a website’s backlink profile to others in Ahrefs’ database. It took Netlify 1 year to grow from a 25 to a 71 with 304 referring domains. BrightLocal: Best for local SEO. Increase Ahrefs domain rating, increase Ahrefs DR 50 plus . Domain Authority: What Do They Mean for SEO?. That means that your DR will drop if you're beginning to lose high-quality links. Higher scores mean a greater ability to rank. A domain comparison tool is also provided in Ahrefs. Here at Ahrefs, we have a website authority metric of our own called Domain Rating. 2. Moz Link Explorer. Here are a few; Ahrefs Site Explorer. Refer to Principles of Domain Rating calculation for more information about Domain Rating. The table below is from the Link Building Tool. Fanatically Digital’s Domate Rating is 39, apparently. Records. 340. The tools you will need are Google Search Console (GSC) and Ahrefs Webmaster Tools (AWT). It uses Ahrefs’ Domain Rating algorithm to calculate how many backlinks you have and then. It runs on a scale from zero to a hundred. Go to a website that offers a page authority checker tool such as Ahrefs, Moz, or SEMrush. Use a Traffic Tracker Website Tool To Estimate the Value Per Visit. In my experience DA is fairly representative of the amount of push you'll get from a domain/page by linking from it, but other than that it is not good for much of anything. Other indexes may do this differently and come up with different counts. At Semrush, the domain has an authority. Here at Ahrefs, we have a website authority metric of our own called Domain Rating. According to Ahrefs, the Domain Rating of a website reflects its authority, but it is different from. yep. These are websites that can potentially impact the DA of your website. Ahrefs. It is measured on a scale from 0 to 100, with the latter being the hardest to rank for. It’s missing crucial tools, like advanced SERP analysis, complex data segmentation, and all of Ahrefs’ useful filters. Large image files. Each result in the response costs 0. The bigger number means you have scored higher and the stronger page's link profile is. However, making these at scale on any directory, regardless of the quality, is considered yet another spammy practice. It's a numerical value between 0 and 100 that measures the authority of a website. DA scores between 40 – 50 are considered average, with 50 – 60 being good and over 60 being excellent. DR is a proportion of the amount and nature of the backlinks going to the whole area, while UR rates the backlinks going to a particular page. Domain Rating is widely used in the SEO community to evaluate link-building opportunities and estimate the website’s authority gained via backlinks. It is measured on a scale of 0-100. Ahrefs Rank (AR) A global ranking score for a website, comparing its backlink profile with all other websites in the Ahrefs database. Features:tforms for SEO professionals: Moz’s Domain Authority, Semrush’s Authority Score, and Ahrefs’ Domain Rating, values obtained using different indices and applying different procedures. The calculated UR value in Ahrefs is accurate for a variety of reasons, the most prominent of which being that the “nofollow” html attribute is considered. This is less evident for the US, where backlink profiles are generally larger. Scores above 60 rate the Domain Authority as excellent. Number of Keywords. You can use this tool to check the score for domains and individual web pages. Ahrefs’ Free Broken Link Checker. Tools and Resources to Track and Monitor Domain Rating. domains):先让我们来看下影响 Domain Rating(域名评分)的三大要素: 有多少个网站指向了你的站点; 指向你的网站的DR(域名评分) 反链域名网站指向其它网站的数量; 1. Venngage, şu an olduğu onsuz yere ulaşamazdı. To calculate the link_age we’ll simply deduct the first seen date from. Ahrefs DR (website authority) focuses on the strength of a domain by looking at the unique backlinks it has. Shying away from the idea of Domain Authority, Ahrefs uses a concept called Domain Rating (DR) which runs on a scale of 0 – 100. 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. 因此,Ahrefs 的域名评分是判断链接前景相对质量的良好指标。. This would work if PageRank algo was still purely linkbased, assigning an equal arbitrary starting value to each domain irregardless of other factors and metrics. We calculate the Ahrefs KD score by taking a trimmed mean of the number of linking domains to the current top-10 ranking pages and then plotting. To be more precise, Ahrefs first considers the aforementioned points. It’s called SEO Writing Assistant . Domain Rating (DR) is a proprietary metric from Ahrefs that is designed to measure the strength of a domain’s backlink profile via total number of backlinks and total unique referring domains. Crucially, Ahrefs uses its own proprietary ranking called “Domain Rating”, instead of Moz’s “Domain Authority” algorithm. Domain Rating is the primary ranking metric used by Ahrefs. Domain Rating (DR) shows the strength of a website's backlink profile compared to the others in our. Ahrefs: “We Have Done White Hat SEO Work For Our Client Site Regarding To Increase Ahrefs Domain Rating High,. WooRank: Best for user-friendliness. While DR measures the relative robustness of the backlinks, AR ranks websites based on their backlink profile strength. The number of unique domains each linking site also links to. We calculate DR in a somewhat similar way to how PageRankis calculated. That means higher the number of referring domains across the top-ranking pages for a given keyword, the more will be the keyword difficulty score for that keyword. 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. They also explicitly state that DA isn’t a metric Google uses to. Ahrefs’ Keyword Difficulty (KD) is a metric that can help you determine how hard it would be to rank in the top 10 for a given keyword in a given country. Make a copy of the previous dataframe and give it a new name. Consistency. 5 first page rankings per post (21 total), versus a client 8 months in with nearly 1. ” – Ahrefs. domain/*” and hit “Analyze”. When you conduct a traffic website to check using a traffic website estimator, you need to take a look at the value your website is generating per visit. Ahrefs said they tried to. This post will explore what it is, how it works, and. This can be a positive because it keeps things. These tools calculate domain rating on a logarithmic scale from 0 to 100, which is a fancy way of saying it gets harder to increase your score the higher it goes. Domain rating is a ranking metric created by Ahrefs assigned to highlight the strength of a website’s backlink profile compared to others in their database. It’s like a popularity score for your website’s links. Linked domains. This is because PageRank is calculated at the page-level, not the domain-level. Apparently, Moz bases its tool mainly on Google whereas Ahrefs considers other. It builds trust, boosts your brand, and unlocks partnership opportunities. Go to Traffic share by domains. Get a better sense of ranking difficulty and competition with SEO metrics for the top-ranking pages. It is calculated based on a combination of factors, including the number of links, the credibility of each of the pages, origin of the. They are called URL rating (UR) and domain rating (DR), measured on a 100-point scale, and measure the relative strength of a page’s or website’s backlink profile. Understanding how Domain Rating is calculated can provide valuable insights into your website’s performance. Ahrefs is More User-Friendly. Subdomains. An overall score from 0-100 calculated by multiple factors, mainly total backlinks, unique backlinks, and the relative authority of each of those backlinks. Domain Rating is known as DR. DR or Domain Rating is one of the popular SEO metrics across several platforms and not just Ahrefs. It runs on a scale from zero to a hundred. It's the practice of adding a partner’s, pre-agreed and relevant link to your website in return for a relevant link to your blog post on their domain. This score can then be used when comparing websites or tracking the "ranking strength" of a website over time. Why organic search is important. Ahrefs considers factors such as the Domain Rating (DR) of the linking website and the relevance of the linking page. 查看您的竞争对手的哪些关键词在搜索中获得排名,以及每个关键词给他们带来多少流量。. This is more than one of the top-20 most visible domains, collinsdictionary. This is where you can add the website addresses of up to ten competitors at once with a line space. The tool even provides information about the number of unique backlinks, root domains, and number of keywords ranking for a specific domain. Note: By using the option "Turn off for this project" for "Errors", Health Score will be affected and for "Warnings" or. Ahrefs. Share of voice (SOV) is traditionally a measure of your advertising share compared to competitors. Domain Rating (DR): The overall strength of a website’s backlink profile on a scale from 0–100. The more and higher-quality dofollow referring domains a website has, the higher its DR is, and the closer its AR is to #1. Updated over a week ago. How to upload a disavowed links file in Ahrefs Site Explorer. In other words, Ahrefs Domain. By reflecting on these figures you can gain insights into how your website is performing in search engine directories and advance your digital marketing strategy. Ahrefs Has More Comprehensive and Up-to-Date Database of Backlinks. The example below shows the #1 and #2 organic search results for “best vets Dallas. We then zoomed into these 5. 1. 选择一个适合您需求的套餐,我们会在另一边再见。. Ahrefs: Overall best overall all-in-one SEO tool. Ahrefs pozwala nam na usprawnienie wszystkich naszych wysiłków SEO. Then add the page’s URL and click “ Import . The score ranges from one to 100. DR is a measure of the quantity and quality of the backlinks going to an entire domain, while UR rates the backlinks going to a specific page. Just input or import a list of keywords, add multiple countries per keyword and tell us your competitors’ URLs. URL parameters and hash parameters are not parts of the URL slug. For example, if you were looking for low-competition transactional keywords, here’s how you’d do it: Enter your seed keywords. They have also found 139 unique websites that link to us. Moz. – The main factor in measuring Ahrefs DR is backlinks. They determine the actions you take, so you should choose the KPIs wisely. 2. Should this mode be applied to results from and all of the subdomains of like will be provided. Traffic value history chart shows you the history of your target website's or URL's traffic value, plotted on a graph. The higher the better. How Does Moz Calculate Domain Authority? Domain authority is scored on a scale of 1 to 100 (1 being the worst, 100 being the best) using an algorithm designed by Moz. Google admits to still using PageRank after over 20 years since it was invented.