Sure it can but I would not encourage this.
Even Apple’s iconic product Landing Pages all have their main website navigation displayed when you first land:
but note how it disappears as you start scrolling:
Hiding your main website navigation will prevent a potential customer from wandering. Your Landing Page has only one objective — sending visitors to another page is not it.
More Landing Page FAQs:
- What (exactly) is a Landing Page? (start here)
- What makes a good Landing Page?
- How do I improve Landing Page conversions?
- Can a home page be a Landing Page?
- Can a Landing Page reuse the main website navigation?
- What components go where in the Landing Page and what should they say?
If any of this (text, images or refs) didn’t make sense, please hit me up on Twitter or email - I’m here to help. Also let me know what Landing Page areas you are struggling with and I’ll try my best to point you in the right direction:)