tclcom.com is the corporate website for Jiekai Communications, the core R&D team behind TCL and Alcatel smartphones. The domain has been online since 1997, which is a strong indicator that the company behind it is real and established. There's no evidence of scams or blacklisting, and the Wayback Machine shows nearly three decades of consistent use by the same entity.
That said, the site itself feels like it's stuck in the early 2000s. It doesn't use HTTPS, which means any data you submit—like a job application or inquiry—would be sent in plain text. For a company that's part of a global brand like TCL, that's a serious oversight. There's also no contact page, no privacy policy, and no terms of service. If you need to get in touch with this company, you'll have to look elsewhere for contact details.
So is tclcom.com a scam? No. But is it a site you should trust with personal information? Only if you're comfortable with a lack of basic security. If you're researching TCL's R&D operations, the site is useful for background. If you need to do business with them, seek out a phone number or email from another source rather than relying on this site alone.