The online link is your best option to track your refund. I have attached a link with more answers from the IRS as to why your refund may be taking longer to process.
Federal refund questions
There is a delay in processing the returns as the IRS is not processing anything paper at the moment due to Covid-19 and social distancing policies in effect.
IRS operations
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"