Web Site's Credibility: Elements

1.You can build web site credibility by providing third-party support (citations, references, source material) for information you present, especially if you link to this evidence. Even if people don't follow these links, you've shown confidence in your material.
 

2.Showing that your web site is for a legitimate organization will boost the site's credibility. The easiest way to do this is by listing a physical address. Other features can also help, such as posting a photo of your offices or listing a membership with the chamber of commerce.
 

3. Don't link to outside sites that are not credible. Our site becomes less credible by association.
 

4. Show that honest and trustworthy people stand behind your site. It is A way to convey their trustworthiness through images or text. (Image and text is a way to convey our trustworthiness)
 

5.A simple way to boost your site's credibility is by making your contact information clear: phone number, physical address, and email address.
 

6.The visual design should match the site's purpose.
We find that people quickly evaluate a site by visual design alone. When designing your site, pay attention to layout, typography, images, consistency issues, and more.
 

7.People assign more credibility to sites that show they have been recently updated or reviewed.
 

8.Use restraint with any promotional content (e.g., ads, offers).
 

9.Avoid errors of all types, no matter how small they seem.

Source: https://credibility.stanford.edu/guidelines/index.html