1. Keeps you in line with the trends.
Keeping tabs on what website trends and stats are driving results will give you an advantage over competitors. This will ensure you have the best shot at providing an experience that customers love. It will also ensure you are updating structural elements of your site like HTML, meta data, and schema.
2. It keeps your photos fresh.
Website visitors are often visual, which means that your photos play a big part in the impression your site makes. Updating the photos on your site can help ensure your site doesn't look outdated. It will also allow you to include photos of new customers or new employees.
If you are using stock photos, it is vital to update those regularly. Stock photos tend to appear outdated quicker than your own photos.
3. Allows you to change with your goals.
Let's face it when it comes to business goals, the only thing that is certain is change. Updating your website will allow you to stay aligned with your business goals. For instance, maybe you initially wanted to focus on getting people to call you, but after analyzing your business goals, you decided customers should submit a form on your site. Updating your site will allow you to stay agile as your goals change.
4. Improves SEO
The hands-down most important benefit of updating your website is the SEO benefits. Google is the top search engine, so we will use them as a reference. Google is looking for sites that are fresh and feature updated content. For instance, if all things were equal between you and a competitor, but your competitor has updated their website in the last 30-60 days, but you haven't, the competitor would likely rank higher than you on Google. So it goes without saying that updating your website can have massive SEO benefits.
5. Can remove redundant pages and improve site speed.
Site speed has been consistently getting more important over the last 5 years. As more consumers are browsing the internet on mobile phones, the need for a fast site has risen. Removing unneeded or redundant pages/content/images can help increase your site loading speed.