How to get count of urls present in sitemap.xml file

Use jQuery to count the urls

cy.request('sitemap.xml')
  .its('body')
  .then(xml => {
    const count = Cypress.$(xml).find('url').length;
    cy.log(count)
  })

Assuming all your url’s have a tags, and you have to assert the count you can do like this:

cy.get('a').should('have.length', 10)

If you just want to print the length you can like this:

cy.get('a')
  .its('length')
  .then((len) => {
    cy.log(len) //prints length
  })