Domain Age
A small factor in Google’s algorithm is how old your domain name is. If a website has been around on the same domain name for years it is more likely to be more important than a fresh new website under a new domain name.
Although there is not much that you can do but wait there is one thing that you can do. You can purchase a recently deleted domain name that is of the same subject matter as your website to help you with this. Before purchasing the domain name check out what backlinks point to the old website that used to resign under this domain name and see if they are of similar, high-quality websites that you would want pointing to your website.
As an old friend of mine Bill Slawski said in one of his research articles on patents filed by Google he discovered that Google filed a patent that used the information from domain registrars to help determine the rankings for its algorithms. Although the switching of ownership between domains may be a factor in determining whether or not the ‘importance’ and ‘age’ of the domain will transfer along to the new owner I have discovered that under new ownership they do not transfer over very well. Even after doing 301 redirects and building the same pages as the old website with new or old content.
Domain Authority
The phrase Domain authority was first penned by Moz. It is a rating of how important a website is on a scale of 1 to 10 or 1 to 100 depending upon what SEO software you are using.
Check the DA (Domain Authority) of your website and if it is low consider beefing it up by applying EAT (expertise, authority, and trustworthiness) of your website. You can read more EAT on this page.
Domain authority is usually higher than page authority but I have seen on occasion a website that had a page with higher authority than the domain.
Page Authority
The phrase Page Authority was also first penned by Moz and is a rating to show how important your web page is in Google’s eyes. To raise your page authority consider beefing it up by applying EAT (expertise, authority, and trustworthiness) of your website. You can read more EAT on this page.
Most of the time the page authority will be lower than the domain authority but occasionally I will see when doing competition analysis a website that has a higher page authority than the domain authority. This usually happens when the content of a page of a website (usually an article) becomes so wildly popular and is linked to more than even the home page of the website.