Blogger has introduced country code Top Level Domain (ccTLD) or country specific URL for blogs hosted under blogger. The country specific URL by blogger has caused serious drop in blog's traffic. The mostly effected blogs are the blogs which does not have canonical tags in their templates. This may be be due to the customization of blogger template.
If your blog template contains the above code, then you are safe. The canonical tags will be automatically generated using this tag. If the tag is not present you can add the same code just below the <head> tag. By adding the above codes effect any of your blog customization, then you can try this code.
Solution for Low Traffic due to Country Specific URL (ccTLD) for Blogger websites
To re-gain traffic effected by country specific URL, you have to ensure that canonical tags are present in your website. For this look for the following tags in your blog template.If your blog template contains the above code, then you are safe. The canonical tags will be automatically generated using this tag. If the tag is not present you can add the same code just below the <head> tag. By adding the above codes effect any of your blog customization, then you can try this code.