OSCP = Online Certificate Status Protocol
CRL = Certificate Revocation List
這兩個名詞都跟數位憑證/PKI有關係, 加上他的 Domain 取名叫 trust, 應該跟這方面的業務相關. 經查 Comodo Group, Inc的公司簡介內有:

Comodo's innovative software and services do this by:

Authenticating Individuals, Businesses Websites and Content: Authentication is at the heart of trust – it's the process of confirming that something or someone is genuine. Hackers are counterfeiters and impersonators - they thrive on deception. Trust is created when individuals, businesses, websites or software publishers are authenticated to ensure that they are who they say they are, and that their information has not been tampered with. This trust is the core of successful online businesses and trusted online interactions.

Securing Information: Encrypting sensitive information at all stages of its lifecycle is a proven method of keeping it safe from hackers. Strong Public Key Infrastructure (PKI) encryption through digital certificates ensures that the encrypted information can only be used by authorized parties.

Securing Websites and E-Commerce: Uncovering and alerting IT organizations to vulnerabilities in their server/site's technical configuration or security procedures that could be exploited by hackers, and providing advice or solutions to eliminate them.

Securing and Maintaining PCs: denying hackers access to the information and resources they need to succeed, such as your personal or business financial information, and at a more fundamental level, your computer's internet connection and processing capacity.

所以, 那兩個網址, 應該跟他們提供的某種服務有關連, 欲知詳情, 請逕洽該公司客服.