In this short guide I will propose an approach to evaluate the choice of link anchors, avoid possible penalties and not draw too much attention.
Let's remember that the manipulation of text poland phone number anchors would actually not be a "welcome" practice for Google's algorithm, this is because in their vision of a perfect world everything should be natural!
Yes, of course!

What is anchor text?
But let's take a big step back: what is an anchor text? When we talk about anchor text , or textual anchor , we mean the part of a web page text that links to another resource (internal or external). To make myself clearer, they are those words underlined in blue that you see when you read a text on a website. To define a textual anchor, it is necessary to include the words we have chosen for the anchor within the html tag <a> .

Why are anchor texts so important?
They are because they convey incredible SEO value. The problem is that they have often been misused and for this reason Google released Penguin , which in some way forced SEOs to review their use.
What types of anchor text are there?
If we want to create an excellent link profile that is as natural as possible, we need to know what types of anchors exist. We can classify them into 6 types:
Exact again: I use the exact keyword for which I want to position myself in SERP;
Still partially correct: I use terms related to the primary key;
Brand again: I'm going to use the exact key using the brand name;
Anchor url: I use the URL as an anchor;
Synonyms / Related: I use synonyms or related terms to the main key;
Generic anchor / image: I use generic terms or images that are completely off topic with the keyword.