Advice on moving my $10K CD to vanguard account and VOO fund

I’m mid 30s and have a 401K through work that’s doing pretty good; $300K. I also have $50K of my employers stock that I contribute $10K to each year to grow for kids college, weddings, etc.

2 years ago I took $40K cash from my savings and set it up for CD laddering. I have $10K 2 years, $10K 3 years and $20K 4 years. The first one matures late March. All are around 2-3%.

My plan is to open a vanguard account online and put the first $10K in VOO or another recommended fund. Then do the same as the others mature each year. Is this a sound investment plan? I would plan to leave them in for 20+ years as this isn’t my emergency fund.

Also, I’m a little nervous about the vanguard website. Scared I’m on some knockout website that I’d be transferring my money to who knows where.

Let me have it money board. Tell me the pros and cons and any kind of advice or criticism will be well received.

Thanks for your time.