Yes – just ask the thousands of The TEFL Academy alumni!
The quality of your TEFL certificate is not dependent on its method of instruction. There is no reason to think a face-to-face TEFL certificate is better than an online TEFL certificate.
The quality of a TEFL qualification depends on the quality of the course itself, the experience of the course tutors, the accreditation of the TEFL course, and the reputation of the TEFL course provider.
Read more: Can I Teach English Online With An Online TEFL Certificate?