100 SEO Tool miễn phí và resource tốt cho SEO

100 SEO Tool miễn phí và resource tốt cho SEO
Tại Moz.COM (trang web cập nhật thông tin về Google mà dân SEO rất quen thuộc) đa số thành viên đều sử dụng những công cụ có trả phí được Moz.COM cung cấp. Nhưng những thành viên tích cực của Moz vẫn cố gắng tìm kiếm các công cụ SEO miễn phí phục vụ cộng đồng.

Dưới đây là danh sách 100 công cụ SEO miễn phí được tổng hợp và chia sẻ:

I. Free Tools


1. Anchor Text Over Optimization Tool
http://www.removeem.com/ratios.php
Link Research, Technical SEO
Nếu bạn lo lắng về thuật toán Google's Penguin có thể ảnh hưởng đến? Hãy gõ URL và bạn có thể nhận một báo cáo đầy đủ về những tác động của Google's Penguin.

2. Bing Webmaster Tools
http://www.bing.com/toolbox/webmaster
Tools Suite, Diagnostic
Similar in function to Google Webmaster Tools, Bing offers a suite of interesting research tools and resources for webmasters.

3. Bitly
https://bitly.com/
Social, Analytics
Most people use Bitly for URL shortening, but the real power of this platform comes from its analytics.

4. Boomerang
http://www.boomeranggmail.com/
Email, Productivity
Boomerang lets you follow up on emails, even when you forget. Great for link building or any time you send a lot of emails.

5. Buffer
https://bufferapp.com/
Social
Optimize your online social media sharing. Buffer allows you to share with your audience at the optimal times for greater visibility.

6. BuiltWith
http://builtwith.com/
Competitive Intelligence
Use BuiltWith to discover what technology nearly any website was, well, built with. Great for competitive intelligence as well.

7. Buzzstream Tools Suite
http://tools.buzzstream.com/link-building
Link Building, Tools Suite, Email
Most people know Buzzstream as an outreach platform, but they also offer a number of free link-building tools. This company gets it.

8. Caption Tube
http://captiontube.appspot.com/
Video
Free and easy resource used to create captions for YouTube. Helps with usability and offers viewers a readable transcript.

9. CircleCount
http://www.circlecount.com/
Social, Analytics
Google+ analytics ramped up. Free resource to track your followers and analyze your shares. See how many followers you've gained over time.

10. Content Strategy Generator Tool
http://seogadget.com/content-strateg...ool-v2-update/
Content
This tool from SEOgadget helps you plan your content strategy intelligently, using keyword research and estimating your audience size.

11. Convert Word Documents to Clean HTML
http://word2cleanhtml.com/
Content, Productivity
Despite the rise of Google Docs, Word still dominates much of the world. Copying and pasting has always been a hurdle, but this tool makes it easy.

12. Copyscape
http://www.copyscape.com/
Content
Copyscape serves both as a plagiarism checker and a duplicate-content checker. Great to use if your content has been distributed across the web.

13. Domain Hunter Plus
http://domainhunterplus.com/
Link Building
This magic extension for Chrome not only helps you find important broken links, but also tells you if the links point to an available domain.

14. Easel.ly
http://www.easel.ly/
Infographics
Free tools for creating and sharing inforgraphics. The templates allow anyone to create a professional-looking graphic.

15. Email Format
http://email-format.com/
Email, Productivity
Email Format helps you find the proper structure for thousands of companies and organizations across the web.

16. FindPeopleonPlus
http://www.findpeopleonplus.com/
Social
The ultimate Google+ directory that's great for research, outreach, and link building. Sort by keywords, profession, country, and more.

17. Frobee Robots.txt Checker
http://www.frobee.com/robots-txt-check
Robots.txt, Technical SEO
Many robots.txt files contain hidden errors not easily visible to humans. Run your file through this tool and you never know what you'll discover.

18. GetListed
https://getlisted.org/
Local, Moz
This awesome local SEO tool scores your local SEO visibility and gives you actionable next steps to raise your score.

19. Google Keyword Planner
http://adwords.google.com/keywordplanner
Keyword Research
The tool to replace Google's popular keyword tool has been derided by some, but still offers data not available anywhere else.

20. Google Analytics
http://www.google.com/analytics/
Analytics
The most popular of all the analytics tools available, Google Analytics continually innovates and sets the standard.

21. Google Analytics API
https://support.google.com/analytics..._topic=1008008
API, Analytics
The Google Analytics API is great for building custom reports and tools, and also for pulling data straight into Excel or Google Docs.

22. Google Map Maker
http://www.google.com/mapmaker
Local
Among other things, Google Map Maker allows you to contribute to public map information, which may be shared and incorporated into Google Maps.

23. Google PageSpeed Insights
https://developers.google.com/speed/pagespeed/insights
Speed
Tools, data, and insights to improve your page speed. Page speed is correlated with better rankings and user engagement, so this matters.

24. Google Public Data
http://www.google.com/publicdata/directory
Content
Drawing on vast public databases, Google public data offers a great starting point for content research, infographics, and more.

25. Google SERP Snippet Optimization Tool
http://www.seomofo.com/snippet-optimizer.html
Technical SEO, CRO
That SEO Mofo! Use this tool to see how your snippet may appear in Google's search results. Add structured data, review stars, and more.

26. Google Structured Data Testing Tool
http://www.google.com/webmasters/tools/richsnippets
Structured Data, Technical SEO
If you use Schema.org microformats or any other type of structured data, this tool will verify your markup.

27. Google Trends
http://www.google.com/trends/
Keyword Research
See what's trending in Google search results and view keyword search popularity over time. A must for trends.

28. Google Webmaster
http://www.google.com/webmasters/
Tools Suite, Diagnostic
The interface recently received an overhaul, and Google Webmaster remains a must-have resource of diagnostic and health tools for site owners.

29. IFTTT
https://ifttt.com/
Productivity
IFTTT stands for IF This, Then That. The tool allows you to create automatic triggers between various apps, like Gmail and Twitter.

30. Infogr.am
http://infogr.am/
Infographics
A great free Infographics resource that allows you to easily create graphics and data visualizations.

31. Internet Marketing Ninjas SEO Tools
http://www.internetmarketingninjas.com/tools/
Tools Suite
The Ninjas are some of the best SEOs and online marketers out there, and they've put some of their best tools online for free.

32. Linkstant
http://www.linkstant.com/
Link Building
This nifty analytics tool alerts you anytime someone links to your website. Great for outreach and intelligence gathering.

33. Linksy.me Email Guesser
http://linksy.me/find-email
Email, Link Building
Need to send an email, but you don't have the recipient's address? Type in what you know and this nifty tool will help you figure it out.

34. MailTester.com
http://mailtester.com/
Email
Need to send an email to an untested address, but you don't want to spam them? Check it first with this mail tester to verify.

35. MozCast
http://mozcast.com/
SERP Tracking, Moz
Want to know if Google is testing its algorithm this week? MozCast gives you a daily weather report to track changes in the SERPs.

36. MyBlogGuest
http://myblogguest.com/
Link Building, Content
Guest blogging is still alive and thriving. MyBlogGuest helps you find the good opportunities out there.

37. Panguin Tool
http://www.barracuda-digital.co.uk/panguin-tool/
Analytics
This awesome tool connects with your Google Analytics account to help you see if and when you've been hit by Google Algorithm updates.

38. Pingdom
http://tools.pingdom.com/fpt/
Speed
Pingdom offers an entire suite of speed tools to help analyze page load, DNS issues, and connectivity.

39. Piwik
http://piwik.org/
Analytics
Piwik is a lightweight web analytics solution, and a great alternative to Google Analytics.

40. Rank Checker for Firefox
http://tools.seobook.com/firefox/rank-checker/
Rank Tracking
This light and easy desktop tool checks rankings with the click of a button. Quick, easy and free.

41. Rapportive
http://rapportive.com/
Email, Link Building, Productivity
Rapportive works with your Gmail inbox to give you near-instant rich contact information for almost everyone you want to reach. A must-have for marketers.

42. Remove Duplicate Items
http://ontolo.com/tools-remove-duplicates
Productivity
Ontolo offers a suite of link building software and a few helpful productivity tools for link builders. The remove duplicates tool solves a common problem.

43. Robots.txt Checker
http://tool.motoricerca.info/robots-checker.phtml
Robots.txt, Technical SEO
Use robots best practices and discover hidden errors in your robots.txt files that may cause search engine crawling problems.

44. Schema Creator
http://schema-creator.org/
Structured Data, Technical SEO
Everyone loves using Schema.org, but the microformats are difficult to write by hand. This generator from the folks at Raven simplifies the task.

45. Scraper for Chrome
https://chrome.google.com/webstore/detail/scraper/
Productivity
If you've never scraped a webpage, you're missing out. Scraper for Chrome puts the power of simple web scraping in your hands without the need for code.

46. Seer Toolbox
http://www.seerinteractive.com/seo-toolbox/
Tools Suite, Analytics, Link Research
SEER opened up its internal toolbox for everyone in the world to use. These are the same tools used in-house at SEER, and they rock.

47. SEO Toolbar
http://tools.seobook.com/seo-toolbar/
Tools Suite, Toolbar, Technical SEO
On of the most popular tools available, The SEO Toolbar puts a ton of information at your fingertips including backlinks and competitive research.

48. SEO Tools for Excel
http://nielsbosma.se/projects/seotools/
Tools Suite, Analytics, Social
You don't need to be an Excel ninja to use Niels Bosma's SEO Tools for Excel. This plugin does so many things many SEOs won't work without it.

49. SEOgadget Links API
http://seogadget.com/api/
API, Link Research
The SEOgadget Links API lets you easily gather not only backlink data but contact information as well. A huge time saver.