45 Best Free SEO Tools for On-Page and Off-Page Optimization

There are bundles of free and paid tools available online to optimize your site for search engine ranking, curate content for marketing and promotion, feature your businesses on social networks and let your stuffs go viral within minutes. Content marketing and Social media marketing are related to Internet business but Search engine optimization is beyond dispute; more strong, more reliable and create fundamentals for a powerful business online that exits lifetime. In order to divert our marketing style and make marketing 10x powerful and faster we need help of different tools that operate online for handling SEO(search engine optimization), SEM (search engine marketing), SMM(social media marketing) and CM(content marketing).

With today's guide I will meet you up with quite some important tools for Search engine optimization, Link building, Content marketing, Competitors analysis and so so. Let's have a quick glance of your favorite tools

Similar Article: 50 Most Useful SEO Tools for Webmasters, Website Owners and Bloggers!

Competitors Analysis

The following tools can be extremely helpful to analyze your competitors ranking, keywords, backlinks, CTR, CPC and much more. Listed on the basis of popularity and usability.

SEMRush

This tool creates unique comparing between sites including search metrics, backlinks, keywords, suggested big, monthly search volume and more. You can get information about your competitors top keywords, traffic data, traffic location, and more secrets on how your competitors are ranking for specific search terms. Check out SEMRush premium tool for free.

Open Site Explorer

The Open Site Explore is an advanced SEO analysis tool by Moz to competitive analysis. With this tool you can compare your website with up to 5 sites. It lets you analyze Inbound links, top pages, linking domains, anchor text, domain authority, page authority, mozrank, moztrust, page mozrank, page moztrust, internal/external links and more more.

Ahrefs

Check your competitors backlinks, referring domains, unique referring IPs, unique referring domains, location of backlinks and much more.

Majestic SEO

Majestic SEO performs as like as Ahrefs in finding out competitors backlinks, referring domains and backlinks with dofollow/nofollow, Indexed URLs, educational and government referring domains etc. You can compare headline stats for up to 5 different domains with tool. If you go through free version then you have limited access to backlinks data and other spaces in addition with limited daily search volume (up to 2 searches per day from a unique IP).

Web SEO Analytics

A great tool to compare your competitors who rank the same keywords on search engines. This tool provides a comparison with up to 10 links including title optimization, page links, pagerank, domain score, alexa rank, domain authority, page authority,  domain traffic and much more.

Internet Marketing Ninjas

This free tool from Internet Marketing Ninjas compare the On-Page SEO analysis with up to 5 full URLs. It compares the page size, title tag, meta description, meta keywords, headlines (H1, H2), keyword usage and density etc.

Site Comparison

Site Comparison from SEO Mastering compares two pages using multiple SEO aspects. It compares content, keywords, links, bold and italic texts, meta tags, titles, headlines and keyword phrases as well.

WebMeUp

Opening a free account at WebMeUp lets you take a look at the backlink profile of your site with competitors. Though it doesn't have largest database of backlink profiles that Ahrefs or Majestic SEO do but it provides different competitors analysis data that worth you checking out.

Link Analysis

Analyze your website backlinks, internal links, referring domains, unique referring IPs, backlinks with dofollow/nofollow and so on. Listed based on popularity and usability.

Google Webmaster Tools

GWT external backlinks tracker provides you the Referring Sites report shows number of visits from other sites to your site. In order to access your site's data simply navigate to Google Webmaster Tools -> Search Traffic -> Links to Your Site. You can also find Google Index reports, Crawl status and more.

Bing Webmaster Tools | Link Explorer

Similar to GWT but they have started few handy tools to analyze your inbound links, You can find all the useful tools under Diagnostics & Data section in your Bind webmaster tools account.

Open Site Explorer

Moz's Open Site Explorer which is an intelligent tool providing your competitors Linking pages, Top pages, Linking domains, Anchor text distribution, Full list of link metrics etc.

Backlink Watch

This is a free tool which shows backlinks and anchor text using in backlinks of any website.

Buzzstream

Buzzstream is a useful project management tool for cataloging link building opportunities & tracking progress with contacts.

OpenLinkProfiler

This tool analyzes your total active backlinks, unique active backlinks, links to homepage, nofollow links, link influence score, industry, and much more.

Link Diagnosis

This free tool provides useful interfaces that make you analyze backlinks of your site. It's a free quick anchor text analyzer which is able to export data in excel functionality. Ability to drill down into links to specific pages.

Advanced Link Manager

This tool is created by the team who created link diagnose is a popular keyword rank and link analysis tool. It's ability to track link-building progress over time. A quick tool with anchor text analysis availability. 

Keyword Research

The following tools are quite popular and most useful to analyze keywords that fit your businesses websites and blogs. Listed on popularity and usability.

Google Keyword Planner

A recommended tool for every internet marketer, webmaster and blogger to target long tail seo and establish content on search engines so early. With GKP you can get ad group ideas and specific keyword ideas including keyword competition, suggested bid, monthly search volume, and much more. To know more check this review of Google Keyword Planner

Google Auto Suggest

This tool is run by Keywordtooldominator which actually takes keyword suggestions from Google data and simplify every keyword representing different several keywords.

Hit Tail

Liked by internet marketers, bloggers as to be the best SEO tool to analyze long tail keywords which are best suited for your niche. HitTail provides specific code which you need to add on your website and HitTail does rest of all the tasks regaring auto generation long tail keywords according to your content which can be easily super fast ranked on Google and other search engines. Read a review on HitTail

WordTracker

With WordTracker long tail keyword research tool you can easily find profitable long tail keywords along with important details regarding Searches, Keyword competition, IAAT (Keyword in anchor and text) and KEI (Keyword effectiveness index).

Übersuggest

This free tool works fine when other tools are sleepy in finding out targeted long tail keywords. You can consider this tool as the best alternative of Google auto complete and this free tool adds different characters after your inputted keywords.

Other Resources to Do Keyword Research:

• 9 Best Keyword Research Tools of 2015 That Will Boost Organic Search SEO
• How To Do Keyword Research With Wikipedia & Google Keyword Planner
• How To Do Long Tail Keyword Research Using Google Suggest
• 7 Best Tools to Find Long Tail Keywords for Targeting Niches
• Guide To Google Keyword Planner for CPC | PPC Advertising

Broken Link Checker

Following free tools can help you to scan your whole website's pages and find out the broken links, bad hosts, dead links, 301 redirects and much more to amend your websites internal linking data.

Related Article: 6 Free Online Broken Links Checker Tools for Websites

BrokenLinkCheck.com

An award winning broken link checker tool which analyzes bad host or bad links of your site and checks your websites or blogs with simple scanning the web internal pages later shows the screen of that page where the dead link is located with highlighted tag lines.

W3 Validator and Link Checker

W3 Link Checker is a free broken link chekcer tool for web pages or full website. This tool provides you different search parameters like Summary, URL redirects, broken links, HTML/CSS validity and more.

Dead Link Checker

DeadLinkChecker is another useful 404 error page checker tool which allows you to full scan or check links on whole website.

Dr. LinkChecker

A free online broken link checker tool providing you information of Redirected links, External links, Broken links, Blacklisted URLs etc.

Content Marketing

Content marketing is also a big part of SEO that's why I have added following free tools to handle your content marketing work more easy and swift than any manual process. Get started with the most efficient free content marketing tools

Must Read: 40 Best Free Content Marketing Tools for Marketers and Producers

Buffer

Buffer is a free tool used to schedule your posts on Facebook, Twitter, LinkedIn and Google plus

PRWeb

With PRWeb you can send SEO optimized press releses about your most valuable conent to 30,000 journalists, 250,000 opt-in news subsribers and to the 3 million monthly visitors on PRWeb.com

Inbound.org

Hubspot's created free marketing platform comprising with the best content marketers and promoters on the planet. You can find the best news, tips, tricks, information, and much more about content marketing from industry experts.

Twitter

This microblogging site is most popular to market your content with target audience who follow you on Twitter.

Stumbleupon

Share your content on SU and get visible by millions of stumblers online.

Pinterest

Use Pinterest to organize your resources, the content from others and your favorite websites for content marketing inspiration.

Pocket

Save videos, articles and other helpful resources away to check out later.

IFTTT

A freeware utility which works to create custom recipes that increase the productivity across all of your web applications.

Content Curation

The following tools are free to use for content curation across many popular platforms. These tools are quite free and provide lifetime support.

Pinterest

Pinterest is used to pin stuffs that are related to your business and target audience online. This is a free tool to curate your content. Pinterest for Business takes curated pinning to the next level, making it easy to collate your favorite pins, market your business quickly.

ContentGems

Get your content curated with ContentGems, and monitoring services that screens 200K+ RSS feeds for news sites, blogs, social media accounts and other services.

Feedly

Curate your blog's content with Feedly and let millions of people subscribe with a popular content syndication tool.

Flipboard

Submit the most favorite content to Flipboard and get them shared with millions of Flipboard users within seconds. Another good thins is Flipboard provides comparatively lower bounce rate.

Storify

Storify makes it easy for marketers to curate content from around the web, pulling from social media updates, news articles, blogs and other sources

Social Media  Marketing

The following tools can help you to handle your social media marketing work more creative, powerful and easy. These are very basic free tools for social media marketing.

Read: 30+ Must Have Social Media Marketing Tools for Every Marketer

Google Analytics

The #1 website analytics and social media marketing tool is Google Analytics which is very intelligent tool in terms of social media, referral, organic and direct traffic.

Buffer

Buffer provides dashboard account to analyze your social media marketing statistics for content you love to share.

Quill Engage

A free tool that connects with your Google Analytics account and emails you a weekly summary of your data.

BulkBuffer

BulkBuffer is an extension for Buffer allows you to upload items to Buffer in bulk. It perfectly works if you're looking to share content from a large source.

Followerwonk

This is a Moz product which is a famous tool specially for managing twitter account. This tool shows you detailed breakdowns of your followers and activity.

Post Planner

A rising social media marketing tool which allows you to schedule updates in advance in addition with providing an entire lists of status ideas.

ViralWoot

Created by Pinterest where ViralWoot provides you more indepth analytics as you can schedule posts, promote pins, and gain new followers all through VW.

Conclusion

These are quite few lists of Free tools for Search engine optimization and internet marketing. All of these tools provide free services at least of trial period; though they offer very limited features but effectively you can still use these tools to optimize content, search engines, on-page, off-page, internal/external links and do more.

If you think I have missed any important tool don't forget to let your suggestions being disclosed right here simply by leaving a comment.