My Pincode website is not indexed in Bing

Hi All,
I have developed a pin code search website in React JS, Google indexed it but Bing is showing error like Title is missing, description is missing, H1 tag is missing. while all these are already mention. My website URL is https://searchmypincode.in/
How can I index my whole website in Bing or Yahoo?
Please give me suggestion. WordPress ...