Trust check · Field notes
Search results are the first security check

A buyer types your company name and expects a standalone domain, an address, a product line, and a contact they can click. If they only find a map pin, an expired forum thread, or a personal account, they assume you are hard to verify. The inquiry goes to a competitor who can be checked.
Referrals get a second look

Even a warm intro still goes through people who have never met you. They will not rely on a WeChat screenshot. A public site lets them check whether the introducer is right. That is what makes a referral transferable.
Certificates, cases, and capacity have to be clickable

If you say you have ISO, a production line, or a group customer, they will ask for files. Putting scans, case pages, and plant photos at a fixed URL looks like a real company. Emailing a zip every time does not.
Same-name companies will impersonate you
Same-name firms, dissolved companies, and fake agents also show up in search. Without a website, the buyer cannot tell which one is you. A domain plus a letterhead that matches the license is one of the cheapest anti-counterfeit tools you have. If a fake site appears, you also have an official address to point to.