Red wine spills on a shirt, so you look online for help and find a link called how to remove a red wine stain.
Those clickable words already tell you something about where the link will take you. Now imagine finding the link in an article explaining what to do after spilling wine on clothing. The writer is discussing the stain and sends readers to a complete guide for removing it.
You now know more than where the link leads. You also understand why it is there.
That simple difference helps explain what people in SEO mean when they talk about backlinks providing or transmitting signals.
A signal is simply a piece of information that a search system can use. Saying that one backlink provides more signals than another does not mean that we can count signals inside a link. It is a useful way of describing how some backlinks come with more information that helps explain the connection between two pages.
What Can a Backlink Tell Us?
Start with the clickable words.
In our example, how to remove a red wine stain gives us a clue about the destination. In SEO, those clickable words are called anchor text.
But a backlink also appears inside a page. There are words around it, a discussion taking place, and a reason the writer chose to send the reader somewhere else.
That additional information can make the relationship easier to understand.
If an article about treating clothing stains links to a red wine stain guide while explaining what the reader should do next, the connection is clear. We can understand both what the destination is about and why it belongs in that particular discussion.
What If the Same Backlink Appears Somewhere Else?
Now keep the backlink itself the same but change what surrounds it.
| What do we know about the link? | Backlink A | Backlink B |
|---|---|---|
| What words can you click? | How to remove a red wine stain | How to remove a red wine stain |
| Where do you go after clicking? | A guide to removing red wine stains | A guide to removing red wine stains |
| What is the article discussing? | What to do after spilling wine on clothes | How to plan a weekend trip |
| What is happening around the link? | The writer is explaining how to deal with the stain | The writer is discussing places to visit |
| Why does the writer send you there? | The guide helps with the problem being discussed | There is no clear reason |
| What can you understand? | Where the link leads and why it belongs there | Where the link leads, but not clearly why it is there |
The first two rows are identical. The backlinks use the same anchor text and lead to the same page.
The difference appears when we look around them. Backlink A comes with information that helps explain the relationship, while Backlink B gives us much less information about why the two pages are connected.
This is the central idea behind different signals supporting a backlink. The backlink is not changing. The amount of useful information available for understanding the relationship is changing.
Can We Actually Count These Signals?
There is no public Google measurement that tells us one backlink contains five signals while another contains two.
That is why phrases such as signal richness, signal depth, and signal quantity can make this subject unnecessarily confusing if we treat them as measurable properties.
A simpler question is:
What information helps explain the link?
The anchor text may tell us something about the destination. The surrounding discussion may help explain why the destination was mentioned. The broader page can provide further context for the relationship.
Google uses many signals and systems when ranking pages rather than relying on one indicator, which is why looking beyond a single link signal is useful when thinking about backlinks.
Does More Information Automatically Mean a Stronger Backlink?
More understandable information around a backlink does not give us a formula for how much ranking value Google will assign to it.
A link can appear in a highly relevant discussion without giving us any way to calculate its eventual ranking effect. Other characteristics of the link and the pages involved may also matter, and Google does not publish a formula showing exactly how an individual backlink is valued.
This gives us an important distinction:
Understanding a backlink more clearly is not the same as knowing how strongly Google will value it.
So when we say that some backlinks transmit more signals than others, the safest and simplest interpretation is not that one backlink contains a larger measurable package of ranking power.
It means that some backlinks appear with more meaningful information that helps explain what is being linked, why the link is there, and how the two pages relate to each other.
That distinction is useful when learning about how backlinks can be evaluated as part of Google’s broader link systems.
