Hi Bob
These are just suggestions, but I would focus on the following (more than 5, but they all help):
- Site structure - Make sure that your site is laid out and categorized in a logical format, with products/services being a short amount of clicks away. Don't make users work and make sure search engine crawlers can easily crawl and find important pages on your site. Here's a great resource from Search Engine Land.
- Product page title tags - Make sure your title tags on your site are using keywords or phrases that users are searching for. Do NOT overdo keywords and stuff them in. Make sure the titles are descriptive of the content with keywords or phrases at the front of the title. Also take advantage of branding in every title tag.Take a look at Moz's Title Tag best practices page.
- Schema markup - WebMeUp has a great article on Schema for eCommerce. This takes time and effort but pays off in dividends in the long run. You will need a web developer if you are not code savvy. Read more about Schema here if you are interested.
- Use meta descriptions - You'll hear repeatedly that meta descriptions are no longer ranking factors, and that's true. BUT, they still hold a ton of weight when it comes to users clicking through to your site from search. Think of your meta description as your sales pitch when a user sees you in search. HubSpot offers a great article on meta descriptions and Moz has a great best practices page.
- Social media - Make sure you take advantage of all relevant social media platforms for your business; meaning use the ones where your target audience is and engage in that community. Make sure you use a brand name, link to your URL in your bio, and also make sure that all relevant contact information is correct and up to date. Here's a great Inc article to help get you started, as well as Moz's Social Media for Beginners guide.
- Business listings / Local citations - this is more if you have a physical store but it's also good for listings in business and niche driven areas. Use Moz Local or Whitespark. I have used both and they do great work.
- Partnerships / certifications - Make sure you take full advantage of partnerships that you may have and also find certifications that are relevant to your business. Both of these items signal trust to users and search engines, and can greatly influence both. This includes items Better Business Bureau, shopping cart or checkout safety certifications, and any industry certifications that separate you from your competitors.
- Secure site - This is especially important if you are collecting user information or transactions on your website. Google recently announced that they do use https as a ranking signal and give a little more weight to websites using https as opposed to http. Again, this is important because you are an eCommerce website. Make sure your site is either one or the other, not both.
Again, these are just suggestions to get you going. I listed relevant resources, so discuss with your team and web development team as these items take time and need to be prioritized based on your website and capabilities.
Hopefully these help - let me know if you need anything else, Bob. Good luck to you and yours!