They couldn't be further from each other. Just from browsing code, they are on opposite ends of the spectrum. Go is easily readable, but at the cost of brevity. Perl is -typically- unreadable, with a lot of one liner magic.
If you are stating merely can a person write a web app in both, well, I think that goes for any language in existence.
Perl could've been readable - nothing in the language prevents you from writing readable code. The problem was two-fold, imho:
1) regex was treated like the primary way to do things - even when it wasn't necessarily called for - at the expense of readability (and Perl supported it so well)
2) sysadmins
The two combined together (and possibly the fact that it was the early days of commercial internet service) led to the idea that anything done in Perl was destined to look like "line noise" to actual SWEs.
I know. Perl was all that at the time. daunting! modern! no compiler OMG! text transformation on the code itself! it was the bee knees.
All that Go delivers today, over the medium, is very similar to what perl also delivered yesteryear, on top of yesteryear medium. But also like perl, it is being born from a bunch of old unix system engineers :)
