Is google tag manager is necessary for a website? what it does basically?

[seigell971]

Google tag manager is an advanced tool which is used to track website traffic, events, re marketing, conversion tracking and many more things with the help of tagging. Google analytics is used to track the visitor. It does not track the event on website like link click, button click, scrolling of page.

If you want to track all the above mention metrics then you should add Google tag manager. If you want to track only traffic and behaviour of the visitor then go for google analytics. Now a days marketers use google tag manager instead of google analytics to track maximum things. I suggest you to use google tag manager.

[Yuga]

Google Tag Manager is a way for marketing teams to have more control of the following codes installed into sites. Rather than asking your tech or development team to add new following codes to the site's HTML code, marketers can deal with the codes that show up in the HTML straightforwardly through Google Tag Manager.

[bijutoha]

I assume so because Tag management offers you an incredible marketing edge.

Why it's important?

First, it would increase your website performance, since tag management includes all of the codes in your header tag and integrates them into one small JavaScript file.

Secondly, it allows the load time of your pages simpler to use, especially Google Tag Manager of Google is a little more sophisticated and very simple to use.

[Niamul21]

I was working on my website spam score and I was going through MOZ community, they mentioned there are several factors that can impact your website spam score, and one of their statement was about "Google Tag Manager Google Tag Manager is almost never present on spam sites"?

You can take the access of that free tool by google providing you with more insights about tag manager.