Làm seo chuyên nghiệp bạn cần phải biết những công cụ hỗ trợ đắc lực nhất cho việc làm SEO. Dưới đây là những mã bối dành cho việc làm SEO:

Backlink Investigation
1. Open Site Explorer: http://www.opensiteexplorer.org
2. Majestic SEO Site Explorer: http://www.majesticseo.com
3. Ahrefs Site Explorer: http://ahrefs.com
4. Link Diagnosis: iAcquire presents Link Diagnosis – examine your link competition

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Server Investigation

1. BuiltWith: BuiltWith Technology Lookup
2. Pingdom Full Page Test: http://tools.pingdom.com/fpt
3. Google PageSpeed: https://developers.google.com/speed/pagespeed/insights
4. URI Valet: http://urivalet.com/
5. SpyOnWeb: SpyOnWeb.com Research Tool – Internet Competitive Intelligence

Website Crawling & Link Checking
1. Screaming Frog SEO Spider Tool: http://www.screamingfrog.co.uk/seo-spider/
2. Xenu’s Link Sleuth: Find broken links on your site with Xenu’s Link Sleuth (TM)
3. W3C Link Checker: W3C Link Checker

Content & Markup Analysis
1. SEO Browser: Free SEO Software Tool & Text Browser, Search Engine Optimization Tools – SEO Browser
2. Copyscape: Copyscape Plagiarism Checker – Duplicate Content Detection Software
3. W3C Markup Validation Service: The W3C Markup Validation Service

Keyword Research
1. Google AdWords Keyword Tool: https://adwords.google.com/o/KeywordTool
2. Wordtracker: https://freekeywords.wordtracker.com/
3. Ubersuggest: http://ubersuggest.org/
4. Latent Dirichlet Allocation Content Optimizer: nTopic Relevant Content Writer and Scorer Tool to Improve Topical Relevancy.

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Competitive Keyword Analysis
1. SpyFu: SpyFu Keyword Research Tools | Discover The Most Profitable Keywords For PPC & SEO
2. SEMRush: http://www.semrush.com

Social Discovery
1. Shared Count: http://sharedcount.com
2. SocialMention: Real Time Search – Social Mention
3. Follower Wonk: http://followerwonk.com

PR & Outreach
1. HARO – Help a Reporter Out: http://www.helpareporter.com
2. Blogger LinkUp: Blogger Link Up
3. MyBlogGuest: Guest blogging: Looking for guest bloggers or guest post? Join MyBlogGuest!
4. DoubleClick Ad Planner: https://www.google.com/adplanner

1. Google Analytics: Google Analytics – Mobile, Premium and Free Website Analytics ? Google
2. Open Web Analytics: Open Web Analytics
3. Piwik: http://piwik.org/

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Search Engine Guidance
1. Google Webmaster Tools: https://www.google.com/webmasters
2. Bing Webmaster Tools: Bing – Webmaster Tools

SEO Analysis
1. WooRank: http://www.woorank.com
2. Lipperhey: http://www.lipperhey.com/
3. Pearanalytics: Digital Marketing Agency – Pear Analytics