These are two forms of usage, You may consult a page without citing it, as a first step, and if you find it relevant and meaningful to your paper, then you cite it.
It's quite simple. If you have looked at part of or all of a research paper, and you feel that it is important to alert people about the existence of the work, you may burden your readers with this information as a "work consulted".
On the other hand, if you find something positively or negatively noteworthy in a research paper, you are free to quote or paraphrase limited extracts, but you have to give the reference in your text and the detail in your References section.
These are two forms of usage, You may consult a page without citing it, as a first step, and if you find it relevant and meaningful to your paper, then you cite it.
In the literature review, there are two types when you read an article or a glance and not found the synthesis for your relevant research you may just consult it. It is a initially stage of literature review here you keep within of your discipline to compare the method
Another type of literature review if you found something interesting and useful as a reference that means you will cite it. In citing paper you are limited to your topic/research study as mentioned by Ian Kennedy and Avishag Gordon.
I think that the general information consulted in a preliminary phase of our research (for example all articles consulted in a bibliographic search) are not cited in the work. But all references we do in our work about other authors, articles, ideas have to be cited in the work and have to be included in the bibliographic of the work. According to my information there is an exception, because the bibliographic of the doctoral thesis have to include the bibliographic cited and can include the bibliographic consulted.