Search:

No if you use same content google will penalize you but you will be use unique content that should be better.

Domain extension which is an Internet category is .com for commercial, .org for organization, .gov for government, .edu for all educational institutions and .pk for Pakistan.

I agreed your post. your post is very help full for everyone.

I suggest you should be try this link for who to write friendly content.
moz.com/blog/write-for-seo-2018

Advantages of Email marketing are:

Targeted Audiences
Increased Brand Awareness
Email Marketing is Cost effective
Real-Time Messages
Personalize Messages

Advantages of SMS marketing are:

Yes blog comments is effective for website ranking.

I always recommend ahrefs.com and SEO Power suit tool for analysis the competitor.

Cloaking is a black hat SEO technique in which the content presented to the search engine spider is different from that presented to the user's browser.

Optimization is the process of using controlled experimentation to improve a website's ability to drive business goals. To improve the performance of their website.

Basically pings sites are for indexing backlinks faster by search engine it notify that these backlinks should index.

You should be Implement follow the following steps.
Site issues Identify problems and challenges.
Improve site speed
Local SEO and Listings
Set the strategic goals you want to achieve for your...

You can promote your site on Social media sites and run campaign on Facebook and Instagram for quickly promote your site.

According to me you should follow Search engine optimization and Social media marketing best techniques for your business improvement.

Google keyword planner is the best tool for research keyword for website and also Google keyword planner is free tool.

Some Things to Consider When Choosing a Web-host Company:


Price.
Focus Areas or Specialties
Technical Support
Features and Add-ons
Hardware
Reputation/Satisfaction/Customer Review
Email...

These three things make up your meta tags. The importance of meta tags is that the search engines read them in order to compare your keywords of Title, description and url.

Keyword density tells you how often a search term appears in a text in relation to the total number of words on the page but reminder a high keyword density is a good indicator of search engine spam.

I agree with your below line.
100 link on web page is good for organic seo.

I think you should to use different tools for indexing Google.

First of all you should to install no-dofollow plugin on Google chrome or mozila fireforx then search dofollow backlinks on Google and check links through no-dofollow plugin.