Go to your blog inside the Blogger Dashboard and choose Template.
Then click the “Edit HTML” button followed by “Proceed.” Next,
copy-paste the following code into the template after the <head>
tag.
<script type="text/javascript">
var blog = document.location.hostname;
var slug = document.location.pathname;
var ctld = blog.substr(blog.lastIndexOf("."));
if (ctld != ".com") {
var ncr = "http://" + blog.substr(0, blog.indexOf("."));
ncr += ".blogspot.com/ncr" + slug;
window.location.replace(ncr);
}
</script>
Click the Save Template button and now your Blogger Blog will always serve with the blogspot.com URL.
