It is the on-page SEO and off-page SEO which together decide the ranking in SERPs. Only header tag optimization will not work to rank in top.

For your website to rank higher for the term "SEO site in India," you must use on-page and off-page SEO strategies. Include the "SEO in India" keyword...

/ladies/ | /ladies.html | /ladies. | /ladies--- | and many more variants. and sitemap counts these 500+ pages as 2500+ pages. One thing more It has 500+ best product page...

If the content on all of those URLs is identical, I'd redirect it. I'd also fix the issue as this obviously is an issue - there is no reason to have both /ladies and /lad...

Could you please tell me on thing more? If there are around 10 categories and 10 subcategories on a site. And single category has many variants like wwww.example.com/ladi...

Sendinblue can be a good option.

I have a blog on Blogspot and it is already in the 5th position of the Google SERPs. So, it is not true that Blogspot blogs are not ranking on Google.

G mass is best

Personally, I would not use price in the title. Often it also means having price in URL and as we know, prices are subject to change. Would you redirect old price URL to...

Mailchimp is good to start with.