Canonical host: https://scriptmasterlabs.com. Do not split authority between www and apex.
https://scriptmasterlabs.com/sitemap.xmlIndexNow does not submit ordinary pages to Google. If a Google Search Console write connection is available, submit the apex sitemap there:
https://scriptmasterlabs.com/sitemap.xml
The Sep 18 bounded IndexNow notice has already been accepted. Bing Webmaster can be used for independent sitemap/crawl-state verification:
https://scriptmasterlabs.com/sitemap.xml