That should be first question you need to research.
Once you know the mechanism then you can research which is the best tool (in this case best programming language) to achieve the result.

and so on

Any web language will do, PHP, Ruby, Python are the most used but you will also make things faster with framerwork like Laravel or ruby on rails and for sure you will need to know html, css and javascript.

Hi. It can be any language you choose - from HTML and CSS to Java or Ruby. There is no sense which one, just any of all existing

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Hey GarfieldLordofCats, You can use any web language like PHP, Java, Ruby, Python etc. There is no restrictions. I hope you understand.

It's not about programming languages, it's about writing skills.
Python, Java, Javascript, and even C++ are excellent for this task.
They are all good, look for information about them, and choose the one you like.
Good luck, it will not be easy!

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Each programming language has its own advantages and disadvantages. They are just tools for creating other tools. I would recommend Phyton - he is actively developing and easy to learn for beginners.

In my honest opinion, there is no such thing as a best tool for making SEO. You can use any programming language and at the same time, there are lots of open source libraries to choose from for the specific programming language of your choice.

If you were to build plugins for a custom SEO in WordPress, you would be using HTML, CSS and JavaScript for the user interface then PHP mostly for back-end purpose. Or if you are somewhat the master of software development, you can try using VB .Net, Python or maybe C++ if you are hardcore, then automate things with Selenium.

You can also make web scrapers or email harvester with any general purpose programming language. You just need the right library and set of tools for it.

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Start with PHP - this is one of the easiest learning languages for web development. As soon as you study it, you will gain a deeper understanding of development processes and your own capabilities.

Javascript is good because it can program both front-end and back-end.

After more thinking i would suggest Go, the google programming language as:

It's statically, strongly typed with a great way to handle errors
It compiles down to one binary. Just execute it in wherever you want.
It's faster.
it support concurrency in a beautiful way (which would be perfect for an seo tool...)
It's very simple, It is the Golangs killer-feature

PHP
Ruby
Python ( the best one )

I will suggest Python and Reactjs are the best option for developing SEO tools. Because Python has many flexible modules and you can make automation with this language.

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The best language is the one you are familiar with, not here to ask the forum. Most languages like PHP, Java can handle this pretty well. Personally I feel this question is off topic because it depends on people's skill sets.

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anything you like, you can even use tools like uBot and basic python knowledge.

It all depends on which type of SEO tools you want to develop. Research first and see what feature you want to add to an SEO tool. Different programming languages are there that can be used to develop your SEO tool. Developers can help you with this.

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