Just follow the below steps to register your .tk, .ml, .cf, .ga, .gqdomain name for 1 year absolutely free of cost. After thecompletion, we will discuss on how to use it as a custom domainon Blogger.
1.Go to Freenom.com 831 and check availability by entering a
great domain name for your blog.2.If it is available, click on Get it now! button and the selected
domain will be added to your cart.3.After that, Click on checkout tab.
4.On the next page, change Period from 3 months to 12
months ( Don’t worry, it remains free) and Click Continue5.Now enter your email address in the given space or you can
use your social profile for login. If you want to sign up using
email address then enter it and click on Verify my Email.6.Check! You will receive a confirmation link to your email
address. Simply, click on that.- Congrats! You have registered your free domain. ?
You can renew again, but don’t forget to renew.
Please note that you can only renew free domains in the last two weeks of each registration period.
How to renew my expired domain?
Domains must be renewed within the 14 day window before the date of expiry, otherwise it will receive expired status.
We always send out a reminder to renew your domain name. If you haven’t received it please check your junk mail.
Once the domain receives expired status, it will come a paid domain for a period of time to minimise the chance that someone else will immediately register the domain.
Source:- https://my.freenom.com/knowledgebase.php?action=displayarticleid=12