Before hiring a digital marketing agency it is important to figure out some sort of thing, so that you can achieve what you're looking for.
It is necessary to realize everything you need before starting the search for agency. A social media marketing agency will have a very different skill set than an SEO agency. Once you have a clear idea of what you need from agency, it’ll be easier to find an agency that fits your targets.
It’s valuable to look for an agency that has experience in your industry. So that their strategies and expertise will help you to easily develop and understand marketing campaigns.
One of the best way to understand the ability of an agency is to look how they handle their own social media accounts. It will indicate what they can do for your business.
Metrics is important in marketing and you should know what tools your marketing agency is using. Like what tools they are using for analytics, scheduling, communication or reporting, campaigns etc.
There are a lot of marketing agencies that promise customers many things to close the deal, but lack the staff and skills to deliver. If an agency is offering to provide you with results that no one else can, ask them to prove it.
The size of their agency matters, some of the agency have 2-3 members and some have hundreds. If there is less competition in your business industry, a small agency can provide you with good service. While an agency with hundreds of members will be able to provide you services for any digital marketing type.