On my client website, the issue was that the DA decreased again, I tested all the things but in vain. After that I came accross to Moz . so I aduited that site. The isssue was found that there site viewing speed as low on mobile view due to huge size of images. The images was very eycatching but it was necessary to overcome this issue. So that I recommanded them to compress images size . In this way that reduced image size in kb and that they got good result back.
Thanks MoZ Team

@rishu578 said in Why My Domain Authority Dropped:

Hello sir i noticed that my DA is Dropped From 27 to 26 Of this website https://www.mytechtalk.org/.

What is the reason I don't i try a lot to find a solution but not get . But I notice that in google webmaster tool the domain linking increased every time but on the Moz.com, not domain added even my DA Dropped. Even When i checked my site on  https://ahrefs.com/   he shows approx 350 domain with high da and pa.

help me i am getting frustrated.

Is that Moz is crawling All domain Fairly or not ??

I also was facing same issue about my image resizer website https://resizepng.com/ before but I removed the links that are not related and then again showed good results.