When you land on reporting.certus.com, you're supposed to log into an account — but the site immediately gets caught in a redirect loop, bouncing you around until the browser gives up. That's not just annoying, it's a sign that something is broken or deliberately misconfigured. The copyright at the bottom says American Safety Council, a known safety training organization, but that alone doesn't make the login page trustworthy.
For any site that asks for a password, you should be able to find a privacy policy explaining how your data is handled, and terms of service that set expectations. reporting.certus.com has neither. There's also no contact page, no about us section, and no social media footprint to check. Legitimate portals for training or certification programs typically make it easy to find who runs them and how to get support.
Given the redirect loop and the missing legal disclosures, I would not recommend entering any credentials here until the site is fixed and its ownership is clearly disclosed. If you are an American Safety Council customer, contact them through their main website directly rather than using this subdomain. There are too many unknowns to call this site safe right now.