First, you need to create your approach or use a way that was created by experienced person. Backlink anchor text — Analyze anchor texts to see how your competitors optimize their backlink profiles. Published July 13, 2023. It’s better than Semrush. Start course. Its main advantages over Content Explorer are its much bigger index of pages (500B vs. Ahrefs is the most powerful tool for SEOs who focus on backlinks, while it's more than enough for people who are trying to maintain their website, come up with new keywords to write about, and have an eye on the competition. It's not so much a hack as a great feature. Both the search volume and Traffic Potential metrics are country-specific, though. The Gmail Dot Trick Method. 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. It's screwing over a lot of users who were already paying a hefty fee. VIP Jr. It will give you tons of insight into your competitors and you will make much better marketing decisions. The bigger number means you have scored higher and the stronger page's link profile is. Ahrefs has a comprehensive keyword explorer. It doesn’t matter if usage fluctuates from month to month as you only pay more for. New Ahrefs tool: Web Explorer. Both work just fine for me and others (see above and elsewhere on BHW). And it’s the main reason we stick with Ahrefs, even after its recent updates pissed a lot of people off. But to be fair, it’s first and foremost a PPC tool. Although these free alternatives are NOT all-in-one SEO toolkits like Semrush or Ahrefs, they are helpful for keyword research, link analysis, site audits, etc. When we performed this study, we had ~112 million keywords in our US database, almost ~14 million of which had featured snippets in their SERP. Now let’s copy-paste the Content URLs (from the Content Explorer export) into Screaming Frog and run it. Link Building: find the strongest backlink opportunities in a niche. Ahrefs Hack Reveals 87,664,108 No Competition Words + Traffic In 7 Hou. Browse the most popular search queries in each country. you have got to see this killer keyword research hack that is guaranteed to find you keywords you can use with no competition that you can use to make moey w. Thanks for tutorial but what is the point of increasing of ahrefs metrics? Does it benefit for google rankings? If not, this is just another useless. is a software company that develops online SEO tools and free educational materials for marketing professionals. January 26, 2023 4 min read. 1% fewer suggestions than SEMrush, 97% fewer than those made by Ahrefs, and 83. One option, which Ahrefs promotes, is the 7 days for $7 option. 7 Ahrefs Hacks That Will Scale Your Blog, SEO, and Revenue Content Creation Hacks Ahrefs Hacks for Keyword Research Ahrefs Hacks for Link Building. This use case can save time and effort in the manual editing. While limited compared to a paid Ahrefs account, they’re. ) I also summarise books on my personal blog. Don't forget to save 20% on annual billing. In this case, Videoder is a 64 rating, which is mid-high. So in this particular blog post, I’ll share a simple strategy you can use to grow hack your SEO strategy with Ahrefs and steal the search rankings of your competitors. Enter one or a few relevant words or phrases. Find rankings for specific keywords using the inbuilt filters and search functionality. 5K 68K views 2 years ago you have got to see this killer keyword research hack that is guaranteed to find you keywords you can use with no competition that you. Well, this is straight from the desk of "didn't see that coming," but search engine toolkit company Ahrefs just told me they've been working on their very own search engine on the sly, plowing $60 million of resources into its own search engine, called Yep. For most of my niches it's not as helpful. 0. Pricing: Semrush offers a 7 day free trial post which you can opt for one of their paid plans. Blog / Resources / Ahrefs Competitive SEO Research Tool Overview & Review. The guy 2 spots above you just answered this. For Poland alone, Ahrefs has over 199 million keywords. As an agency with over 200 monthly clients, SEMRush is better for agency / team management / reporting. In this case, I’m using the keyword “beards” as an example. The new Ahrefs SEO toolbar solves this problem by only loading data for the current tab, and new tabs. They have a huge keyword database with 19. Here are eight Ahref alternatives that are worth considering: 1. Group buys allow multiple users to pool their resources and purchase a single subscription, splitting the cost among the group members. Advertise. If you are an SEO professional or run an agency – Ahrefs is the best Semrush alternative. Completely block Ahrefsbot from visiting your site. Introduction to Ahrefs and its Importance in SEO. One particular trick Soulo uses is the “Content Explorer hack. Standard and Advanced profiles. Ahrefs Group Buy. Canonicals. Ahrefs đối với nhiều người chính là một công cụ “phân tích backlink” tuyệt vời. Apa Alat Riset Keyword Kompetitor Terbaik?. Its free features include: On-page SEO report. تعد Ahrefs أداة قوية للغاية لفهم وتتبع. It also gives you one-click access to tons of reports that help you find things like broken links or new content opportunities. And with ahrefs you can cancel anytime. Monthly subscriptions starting at $99/month (personal) and $999/month (agency). Ahrefs là phần mềm SEO có chứa các công cụ để xây dựng liên kết ( Backlinks ), phân tích đối thủ cạnh tranh, marketing, nghiên cứu các từ khóa, theo dõi thứ hạng và kiểm tra trang web. First, you need to find irrelevant 301 redirects. Today, we update our index with the freshest backlinks on the web every 15 minutes, and our crawler processes up to 8 billion. How I replaced 12+ SEO tools with Ahrefs SEO Toolbar. com. 95 per month. Within the Google search query box, type “allintitle:” or “allinurl:” followed by the keyword you are interested to return some specified data. 5. They include our own collection of free SEO tools, as well as a few select third-party tools that we trust. Here is a quick summary of everything you can do with Ahrefs: Find the keywords that are most profitable for paid as well as organic search. Pick a plan that suits your needs, and we’ll see you on the other side. → How to find the most popular pages of our competition? → Google Ads. I've been in digital marketing for the past 6 years and have spoken at some of the industry’s largest conferences in Asia (TIECon and Digital Marketing Skill Share. Just type in a broad keyword like “drone,” hit “Find keywords,” and you’ll see the top 100 most popular keywords. Rebekah Bek November 7. Empire Flippers. io. Ahrefs is a comprehensive SEO tool, which makes it both a valuable addition to your marketing toolset and a beast to learn. Google is clearly doing an excellent job of ignoring that blatant negative SEO attack. So with AWT, we’re essentially opening up free access to Site Audit and Site Explorer for verified websites. For example, if we were doing this for ahrefs. في السنوات التي قضيتها مع موقع Ahrefs ، رأيت العديد من أدوات مُحسنات محركات البحث المذهلة والممتلئة بالكم الهائل من البيانات التي. Why you need this hack? You are just starting out, you have no money, you are sick of bad shared ahrefs accounts. SE Ranking – Best combination of features and value. We build products that are both meaningful and easy to use, and move fast to give our customers what matters most to them and to stay ahead of the game. However, there are many other tools in the search engine optimization industry that do essentially the same thing as Ahrefs, and. Are you wondering what people around the world are searching. Click the “HTTP code” filter and choose “3XX redirects”. And for good reason: it’s REALLY good. Ahrefs Webmaster Tools are free for any website owner and consist of Site Audit and Site Explorer tools. Transparent Pricing. I use it nearly every day. And they have the numbers to back it up. If you choose to go ahead with this plan after 7 days, it will cost you $99 per month. 95. Ahrefs is the ultimate SEO toolkit that savvy businesses and individuals turn to for leveling up their website's ranking in search engines worldwide. You can find out what these words are by doing keyword research. 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. Browse the most popular search queries in each country. Just this month, we uploaded a whopping 7. Study what people are searching for in Google. You can improve your SEO by getting information about your competitors, such as what keywords they use and where they link. Ahrefs is a set of tools for working with the site at all stages: from competitor analysis and structure planning to taking current positions and analyzing the result. Request indexing. In other words, by building growth, you’re building a foundation for more growth as you go. Competitor analysis with Ahrefs . Home — Ahrefs – Here Is How You Use It For Free. Content marketing specifically to generate links. But then it doesn't cost an arm and a leg. Começar. Headers. Authority Hacker Pro is coming back! Sign up here for updates: I talk to people about generating revenue through aff. If you want to purchase the DR and DA services at the best price contact us at WhatsApp: +923463739895. Backlink anchor text — Analyze anchor texts to see. I don't plan on using Moz at all, I used to use it but to me SEMRush can accomplish all of it in one tool. You can find out what these words are by doing keyword research. This powerful yet simple tool has allowed me to replace over 12 separate SEO tools and SEO Chrome extensions that I used to rely on:. While limited compared to a paid Ahrefs account, they’re still immensely valuable for anyone who’s. Free Trial. They are winning on ~76% of domains compared to Majestic SEO’s ~24%. Identify profitable content opportunities for SEO and content marketing projects. Ahrefs also gives subscribers the chance to explore thousands of additional features, including domain comparisons and batch analysis. Which is where the Ahrefs hack comes in. Fill your content calendar for weeks, months, or even years in minutes. It’s free to use with an Ahrefs Webmaster Tools (AWT) account. Ahrefs Hack Reveals 87,664,108 No Competition Words + Traffic In 7 Hours? Advanced Keyword Research Tutorial (More Traffic – NO Competition) ClickBank Hack Reveals 1,000s Of Profitable Non Competetive Keywords. It runs on a scale from zero to a hundred. Ahrefs Group Buy is an SEO tool stash that incorporates external link establishment, catchphrase research, contender examination, positioning following, and site audit apparatuses. Ltd. Thanks for tutorial but what is the point of increasing of ahrefs metrics? Does it benefit for google rankings? If not, this is just another useless. (with a hack) Ahrefs undoubtedly is a great tool, but lets be honest, not everyone can afford it (at least me). ChatGPT for finding seed keyword ideas. Some site owners have expressed reluctance to use the “noopener” attribute because they’re worried it will affect their site’s SEO. We wanted to give all content creators the data they need to optimize their websites. Here are our favorite 3: 1. JoinedĐây là công cụ khá đắc lực cho các SEOER để phân tích, đo lường hoạt động làm seo của website mình & đối thủ. The Ahrefs SEO Toolbar is a versatile free multi-tool for SEO professionals and webmasters, encompassing a range of valuable features such as: 🔸 On-page SEO report (meta tags, word count, etc. Ahrefs is a tool that can be used for keyword research, link building, and competitor analysis. Ahrefs offers four pricing plans which include: Lite: $99 per month when billed monthly and $83 per month when billed annually. Most Viewed Writers ‘Hack’. Don’t forget you can use Ahrefs Webmaster Tools to get free access to tons of their tools and data. Ultimate Ahrefs Hack: Proven SEO Strategies Unveiled 2023 1. Det har resulterat i 170% ökning i sessioner och intäkter på årsbasis, sedan vi började använda det. Ahrefs Keyword Explorer offers a trial pack of 7 days for $7 with its full functionality, for such a tool $7 is worth paying the price. Yes, Keyword Planner is a free tool. acesfull702 Regular Member. Ahrefs all-in-one SEO toolset can help you with competitor research, link Building, keyword research, website audits, content research and rank tracking. Founded in 2010 by Dmitry Gerasimenko, it is now one of the best-known SEO solutions available — and used by millions of companies around the world, including big brands like Shopify, eBay, LinkedIn, Uber, Adobe, Zoom and Facebook. 去年，我们将网站的自然搜索流量提高了250％。. 0 we will check the #1 ranking page and determine the best keyword that this page ranks for. Search titles only By: Search Advanced search… Let’s look at some examples: 1. These tools are designed to help you improve your website's search engine ranking. Also known as creating link bait, the goal is to create something so valuable and interesting that other people want to link to it. Nhưng trên thực tế,. Using our exclusive link, you can claim Sem. Moz Features: Keyword research tool – Moz offers an easy-to-use keyword research tool. And the top 50 related questions. Search for the URL of the page you want to rank on the first page, and choose “Target URL” from the dropdown. I also have a few niches where it does not work, but for those that it does work with, it is a beautiful thing! I started implementing this method yesterday and have around. There are currently more than 12 trillion links in the database that. SemRush Free Premium Account | Semrush Cookies | Ahref Free Premium Account #shorts #blogger. We are a lean, multinational startup that's headquartered in Singapore. Ahrefs is an SEO software suite that contains tools for link building, keyword research, competitor analysis, rank tracking and site audits. Ahrefs undoubtedly is a great tool, but lets be honest, not everyone can afford it (at least me). 200k+ SEO professionals across the world use it in their daily work. Junte-se à Ahrefs - somos um poderoso mas fácil de aprender conjunto de ferramentas SEO, com uma comunidade apaixonada. Ahrefs Webmaster Tools for finding low-hanging keyword opportunities. Now we need to find out which of those keywords get featured snippets. In fact, my list of Ahrefs alternatives mentions quite a few of those rank trackers since it's one of the tools a lot of people turn to Ahrefs to use. 95 per month. Answer The Public for finding keywords phrased as questions. For example, while you can connect Ahrefs and pull data, they use their own site audit, rank tracking, and backlinks gain/lost. Ahrefs > Keyword Explorer > cari topik, misalnya tentang “tea” (teh) > pilih Questions Report. Step 1. Unfortunately, if price is your concern, SEMRush isn't better; they too start at $100 per month and scale up from there. 3. 1. Ahrefs does this by giving you insights into your website’s link profile and those of your competitors. Overview 2. For Sue, Matthew, and Juan: Great points. Look for keywords with high search volume and low difficulty to improve your chances of ranking well. Are you looking to get Ahrefs free trial? Sadly, there is no free trial available on Ahrefs. Semrush is an all-in-one tool suite for improving online visibility and discovering marketing insights. Most IM'ers focus on competitor analysis and KW research, but they miss some of the best hacks that Ahrefs has to offer. Me to I need to know before buy Ahrefs account Ahrefs is one of the most powerful suites of social media & SEO tools that I’ve ever used. . Feb 24, 2020 #60 TooCorny Senior Member. All issues are sorted by importance, with straightforward advice on how to fix each one. I don’t use ahrefs. I Hacked Amazon’s Keywords – (77 Profitable Niches Exposed) Shocking!Luckily, Ahrefs displays metrics about each backlink pointing to your site so you can easily see the highest quality among them — and the lowest. I’ve started using the free ahrefs for checking out my page traffic, keywords, and trends in my rankings but I’m curious if I’m really just missing out on everything the paid version offers. . When using Ahrefs’ Service, you represent that you are of legal age to form a binding contract. However, “noopener” has zero impact on SEO, in terms of both crawling and link juice flow. If it's your first time using it, then you should know that the SEO software suite specializes in keyword research, competitor analysis, and paid advertising campaign optimization. Both Have Strengths in. 3. ) 🔸 Structured data (schema) checker 🔸 Broken link checker 🔸 Link highlighter 🔸 Redirect tracer 🔸 User-agent switcher 🔸 Country changer for search results 🔸. Ahrefs v1. SEMRush displays insights in the form of beautiful charts and graphs that are simple to understand and analyze. . → Analysis of competition. kamu bisa mencuri keyword website organik, Keyword Difficulty, volume, jumlah kata, BPK, sertakan dan kecualikan filter, fitur SERP, dll. Daftar ke Fitur Premium. How to Join an Ahrefs Group Buyİçerik stratejimizi planlamak için Ahrefs verilerini kullanmak, blogumuza yapılan ziyaretleri önceki yıla oranla %200’den fazla artırmamıza yardımcı oldu. It’s the second largest crawler on the internet, after Google, and it can help you discover the most minute details about keywords, ranks, SERPS, and backlinks. – Ahrefs Free Keyword Generator. Apparently, they have the most active crawler among all SEO tools. Understand and navigate the Ahrefs dashboard. To help you make the most out of your Ahrefs subscription, we asked 97 marketers to give us their best tips for using the tool. Ahrefs. Ahrefs’ Free Keyword Generator. Ahrefs hack 2018 | Free Ahrefs ₹300 | Ahrefs free premium account | Ahrefs Free trials |Get Ahrefs at Rs300 (For 1month)CONTACTWhatsapp- 9086881455Email- blo. Apr 27, 2020 #19 yuuzokun BANNED. You can explore the tool and at the same time learn. Pro – starts at $99. Overview. Guru – starts at $191. Sebelum menggunakan fitur ini secara leluasa, kamu dapat melakukan pembelian tools ini pada versi premium. If you missed Part 1, or the 'Bonus Tip' guides I posted last week, you can follow the links below. Ahrefs is a subscription-based link-building and SEO tool that helps you rank higher in search engines. Their paid plan is about 1/3 the price of ahrefs. ) 🔸 Structured data (schema) checker 🔸 Broken link checker 🔸 Link highlighter 🔸 Redirect tracer 🔸 User-agent switcher 🔸 Country changer for search results 🔸 Domain highlighter for. 1. New pricing. July 31, 2023 10:33 AM. Có thể bị web bị hack, chèn link ẩn…ra ngoài, từ đó bạn có thể sửa, xóa kịp thời. How? Check this guide!Ahrefs’ Paragraph Rewriter can be beneficial for content creators, editors, or writers who need to enhance or refine their written content. For SEO research and tactical SEO, Ahrefs wins. Using Ahrefs to help you find those pins to replicate is more unknown, hence the reason I thought it might help. At Ahrefs, we have a simple opt-in form on our blog: 5. 2 Click on the Pricing Section and choose your plan with annual billing ( You will get 2 months Free) Step. In fact, the GKP provides around 68% fewer average keyword suggestions compared to the paid tools in our analysis. My go-to tool has always been Ahrefs. Step 1. Part 1 - Pinterest. Simply enter a domain name to get the top-ranking keywords. 1. SEO PowerSuite – Best value software-based tool. Ahrefs offers four plans with monthly billing, with the option of annual billing, at a discount. This selection of free SEO tools will help you with various SEO tasks, such as keyword research, on-page SEO, link building, and more. Here at Ahrefs, we have a website authority metric of our own called Domain Rating. Beberapa fungsi Ahrefs adalah seperti berikut: 1. Backlink Profile. Ahrefs adalah salah satu suite media sosial & tools SEO paling kuat yang pernah saya gunakan. You can use it not only for keyword monitoring but also for your entire SEO strategy. That’s why it gives you a prediction of how many referring domains you’ll need to get to rank in the top 10 results, which has nothing to do with outranking the #1 result for your target keyword. 18 Lesser-Known (Yet Powerful) Ahrefs Hacks 1. It does this by tracking the website’s progress and giving insights on how you need to improve it. 3:20:40. Ahrefs shows you the complete picture of followed vs nofollowed links for any target. SERP Checker: The SERP checker allows you to check the top 10 ranking pages of any keyword for any region. This puts Ahrefs above Moz for this feature, especially since Ahrefs can also generate ranking reports the same as Moz. After submitting, your trial version will start enjoy the standard version. You want to get your hands on Ahrefs data for free. 1. menaikkan traffic dari pinterest menaikkan traffic dari quora menaikkan traffic dari twitter menaikkan traffic web seo hack dengan ahrefs workshop manajemen media workshop menulis. One of the key best practices in Google’s Search Essentials is to “use words that people would use to look for your content. Ahrefs offers two helpful tools to generate and refine content ideas: the keyword generator and the questions tool. هل تشعر بالارتباك من بعض مقاييس تحسين محركات البحث التي تراها في موقع Ahrefs؟ هذا المقال لك. – Ahrefs Broken Link Checker. Hi guys, in this video I will tell you how to use Ahrefs SEO Tool Free For Lifetime New Working Tricks. io is the best alternative to Ahrefs. Seguro que te suena Ahrefs, uno de los software SEO más conocidos y potentes que existen en la actualidad. Ahrefs adalah salah satu suite media sosial & tools SEO paling kuat yang pernah saya gunakan. And those that use it a lot will cost you $50/month ( Learn more about user types here ). This plan is best for SEO specialists and professionals in digital marketing. It's no longer just a dream. To help you make the most out of your Ahrefs subscription, we asked 97 marketers to give us their best tips for using the tool. Ahrefs, one of the best SEO and social media research tools, does all of this in one window. 13. 00 stars. It's 100% free and no need for coding1. Ahrefs is one of the most powerful suites of social media & SEO tools that I’ve ever used. Use anchor text analysis to. . VIP Jr. Lite: 5 campaigns for a single user can access 300 keywords with a monthly fee of $ 99 with a 1-week update frequency. 0 of The Authority Site System, which is now available for free to anyone who purchased version 1. Members. Apr 27, 2020 #20 LiquidSnake Senior Member. Ahrefs' SEO Course for Beginners was created to help you navigate search engine optimization in an easy and systematic way. On top of that, you can also use Ahrefs to do keyword research for Google, YouTube, and even Amazon. Most Viewed Writers ‘Hack’. 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. But it's not for everyone. 1. In other words, there aren’t any new. Ahrefs Webmaster is one of the best SEO tools nowaday. It is a paid tool and is considered one of the best SEO tools on the market. Wait for the crawl to finish and click on View. Pero no solo nos ayudarán a descubrir los enlaces que apuntan a nuestro dominio, también podremos conocer el volumen de. Now that you can see all of your competitor’s backlinks, it’s time to begin the link acquisition process. So, after reading @Geasy's recent post and posting another trick I find useful yesterday, I. As an agency with over 200 monthly clients, SEMRush is better for agency / team management / reporting. Ahrefs Hacks Part 1 - Pinterest; Ahrefs Hacks Part 2 - Quora; Ahrefs - Bonus Tip; Semrush Hacks; Part 3 - Twitter Hack So Ahrefs have decided to focus on Twitter only, no problem, this quick and simple hack will help you use that to your advantage in getting retweets and potentially new links from some great accounts and sites. Tetapi “backlink checker” sangat mengurangi penjualan Ahrefs sebagai rangkaian pemasaran. Those that barely use it will cost you no more. Free Trial. 1. With the Lite plan, you get 5 projects, 500 keywords tracked, and 10,000 crawl credits per month. The Ahrefs dashboard provides a comprehensive overview of your website's SEO performance. Ahrefs Review & Tutorial 2023: How To Create Content That Sticks & Build Links That Count. To calculate the UR of your website, you can put it into the site explorer of Ahrefs, and you will get the number for the homepage alone. 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. Joined Jan 21, 2020 Messages 240 In the most recent edition, 270 SEOs voted for the link-building techniques they still use today. It’s faster and more reliable than the previous version, as it only contains backlinks from sites we’ve crawled in the past six. Ahrefs provides several reports to help you do backlink analysis. AhrefsReview of Authority Hacker – The Authority Site System 3. Numero di backlink. Grow your site's authority, boost your SEO ranking and earn more backlinks for your site with these link building tips 2023! The best free keyword research tools. It’s as straightforward as that. September 14, 2023. 6. Find “evangelists” who may be interested in reading your new content by scraping existing website comments. Find out more about it here. For most of my niches it's not as helpful. Private blog networks (PBNs) are made up of many websites you own linked together to manipulate search engine rankings. I promised Part 2 of the Ahrefs Hacks Guide this week, and as promised here is another 'Hack' that can make your life a little easier and drive traffic to the love of your life, your money site. 3. Cool thing about Ahrefs: we can find that answer in just a few clicks—without needing to export to a spreadsheet yet. So in this particular blog post, I’ll share a simple strategy you can use to grow hack your SEO strategy with Ahrefs and steal the search rankings of your competitors. C. 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. 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. Confidently do SEO keyword research using Ahrefs. It also generates an on-page SEO report that includes the web page's: Title. Découvrez quelques pages attirent le plus de trafic pour vos concurrents. In addition, Ahrefs has several other features, including keyword research, rank tracking, and site audits. 2. The URL rating shows the power of the page's link profile. How to use Ahrefs? I'm on the Lite $99 per month plan. This tool also shows keyword-related metrics, such as. Our tools and reports are able to help marketers that work in the following services: SEO, PPC, SMM, Keyword Research and more. See how much traffic your competitors are getting. Ahrefs offers subscription packages for any budget. In this post, we’ll cover seven of those strategies and how to make them work for you based on experience rather than just theory. Find what works and replicate or twist. Outside of Ahrefs being a great source of search data, they’re one of my top tools due to them listening to users and constantly improving their tools. For SEO research and tactical SEO, Ahrefs wins. Mangools – Easiest Ahrefs alternative to use. Through our videos, you'll learn how to grow organic traffic on Googl. 5. Current visitors. One of the most popular Ahrefs alternatives is SEMrush. Free SEO Tools Rank higher and drive more organic traffic with our ever-growing collection of free SEO tools.