One thing that is in digital marketing has brought more harm than good to the insertion of the "Burger-menu" on responsible version. An overall trend is now and as soon as something is trendy, it means that people placed them and where they shouldn't.
If all links on the site are "hiden" in this burger menu, tests have shown that a large number of people came to the home page, we see that there is nothing where to click and go thinking that the whole site is just the one page. Less technologically illiterate people come to the site the percentage of those who never clicks on this menu is bigger. That showed all the UX tests.
Much better option is to put the key sites in the mini - navigation that is present everywhere, but to me a hamburger can be opened further, less important options. There are different solutions. If nothing else, it at least should be put in words NAVIGATION.
Every day I see so subtly sites have this icon in the corner, and I'm sorry effort of these people, because I know that most visitors never click on it and do not see the rest of the site - so pay attention.