how to create sitemap.xml manual?

sitemap.xml is important for seo, you need to know about it

Sitemap.xml format

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url>
    <loc>http://www.example.com/</loc>
   <lastmod>2022-04-09T12:04:12+00:00</lastmod>
   <changefreq>daily</changefreq>
    <priority>1.00</priority>
  </url>
  <url>
    <loc>http://www.example.com/foo.html</loc>
   <lastmod>2022-04-09T12:04:12+00:00</lastmod>
   <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
   ...
</urlset>

Proprety url

loc : it’s the url of your page

• loc (required): Location is the full link of page
• lastmod (optional): last modify your page, UTC timezone:YYYY-MM-DD
• changefreq (optional): change frequency this page, can be: always | hourly | daily | weekly | monthly | yearly | never
• priority (optional): can take values between 0.0 and 1.0

Priority values recommendes

Recommended Priority	Page
0.8 – 1.0	Home page, landing pages, product information
0.4 – 0.7	Articles, blog posts, FAQs, etc.
0.0 – 0.3	Outdated information or old news that has become less relevant

how to build sitemaps for multi sites or multi sub domain

you should build sime sitemap.xml for each site and regroup them in signle file like this

<?xml version="1.0" encoding="UTF-8"?>

<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">

   <sitemap>

      <loc>http://www.example.com/sitemap1.xml</loc>

      <lastmod>2022-04-09T20:40:12+00:00</lastmod>

   </sitemap>

   <sitemap>

      <loc>http://www.example.com/sitemap2.xml</loc>

       <lastmod>2022-04-09T20:40:12+00:00</lastmod>

   </sitemap>

</sitemapindex>

I hope this post gives you some information about sitemaps.