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Online Keyword Density Checker for SEO Pros

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Keyword Density Report

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FAQ

density (n.) c. 1600, “quality of being very close or compact,” from French densité (16c.), from Old French dempsité (13c.), from Latin densitas “thickness,” from densus “thick, dense” (see dense). In physics, “the mass of matter per unit of bulk,” 1660s.

What does the suffix dence mean?

1 : action or process emergence : instance of an action or process reference.

What is density word?

Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.

What is density example?

Everyday Density Examples In an oil spill in the ocean, the oil rises to the top because it is less dense than water, creating an oil slick on the surface of the ocean. A Styrofoam cup is less dense than a ceramic cup, so the Styrofoam cup will float in water and the ceramic cup will sink.

What is density in simple words?

Density is a measure of mass per unit of volume. The average density of an object equals its total mass divided by its total volume. An object made from a comparatively dense material (such as iron) will have less volume than an object of equal mass made from some less dense substance (such as water).

What is the symbol of density?

The symbol for density is the Greek letter rho, What is the density of a material if 450 cm 3 of it has a mass of 200 g?

How is density calculated?

The formula for density is the mass of an object divided by its volume. In equation form, that’s d = m/v , where d is the density, m is the mass and v is the volume of the object.

What is density and why is it important?

The density of an object is one of its most important and easily-measured physical properties. Densities are widely used to identify pure substances and to characterize and estimate the composition of many kinds of mixtures.

What is the purpose of density?

Density is an important concept because it allows us to determine what substances will float and what substances will sink when placed in a liquid. Generally, substances float so long as their density is less than the density of the liquid they are placed in.

How is density used in our daily lives?

Density is used in our everyday lives all the time for example we use density for balloons since helium gas ( the gas from balloons) has a lower density than the air, thus making it float. We use density for transports like boats since boats depend on their density to stay a float).

Why is density important in everyday life?

Density has obvious importance when it comes to the buoyancy of objects. Broadly, if something is denser than water (having a density over 1,000 kg/cubic meter) it will sink, but if something has a lower density than water, it will float. The difference in density is also why oil floats on the surface of water.

How do we use density?

Density indicates how much of a substance occupies a specific volume at a defined temperature and pressure. The density of a substance can be used to define the substance. Water is unusual because when water freezes, its solid form (ice) is less dense than liquid water, and thus floats on top of liquid water.

How is density used in industry?

Density measurement is used to specify and describe a pure substance, but also determines concentrations of binary mixtures and therefore gives information about the composition of mixtures. It is, for example, useful during quality control or helps determine the filling volume during the bottling of a product.

What are two reasons why density is a useful property?

Density can be useful in identifying substances. It is also a convenient property because it provides a link (or conversion factor) between the mass and the volume of a substance. Mass and volume are extensive (or extrinsic) properties of matter – they depend on amount.

What are the three properties of density?

General Properties of Density

• Mass of the Object. The mass of the object being measured for density is a part of the calculation.
• Volume. Volume also decides the final density value.
• The Calculation. Putting volume and mass together in a calculation defines density.
• Water.
• Ice.

What makes density An important property?

Density is an important property to understand because it allows us to determine whether objects will float or sink when placed in a liquid or even a gas. Generally, substances float if their density is less than the density of the medium they are placed in.

Is density a extensive property?

The two types of physical properties of matter are intensive properties and extensive properties. Examples include density, state of matter, and temperature. Extensive properties do depend on sample size. Examples include volume, mass, and size.

Is color an extensive property?

An extensive property is a property that depends on the amount of matter in a sample. Mass and volume are examples of extensive properties. Color, temperature, and solubility are examples of intensive properties.

Which one of the following is extensive property?

The volume of any matter or substance depends on the mass or amount. Thus, volume is considered as an extensive property. The properties surface tension, viscosity and density do not depend on the mass or amount of the matter. Thus, surface tension, viscosity and density are intensive properties.

Is density dependent on mass?

Density (d) depends upon the mass (m) and volume (v) of a substance. The mass depends upon the amount of matter in a substance, whereas volume is the amount of space that a substance takes up. Mathematically, density is equal to a ratio where d = m/v.

Why is density not dependent on mass?

As the radius of nucleus r∝A31 where A is the mass number. so, if we find the density of the nucleus is always constant and is independent of the mass number. The mass number (A) or nucleon number is the number of protons plus the number of neutrons.

Is density dependent on mass and volume?

Density is directly related to the mass and the volume. To find an object’s density, we take its mass and divide it by its volume. If the mass has a large volume, but a small mass it would be said to have a low density. This would let us know that an object’s matter is not very compact, but rather more spaced out.

Does density affect weight?

Density is an intensive physical property whereas weight is an extensive property. Density changes when the pressure and temperature of an object changes, whereas the weight changes when the mass of an object and gravity changes. Gravity does not affect density whereas on the other hand gravity directly affects weight.

Is higher density heavier?

Density tells scientists how “heavy” a substance is. If a substance has a higher density, it is heavier. Likewise a lighter density means it is much lighter.

Does density depend on size?

In other words, the size or amount of a material/substance does not affect its density.

Is density the same as mass?

Mass – Measurement of the amount of matter in an object or substance. Density – How much space an object or substance takes up (its volume) in relation to the amount of matter in that object or substance (its mass). The amount of mass per unit of volume.

Is density and volume the same thing?

Density and volume are scientific concepts pertaining to physical properties and characteristics of matter. Volume refers to the measurement of the amount of three-dimensional space occupied by an object. Density refers to the mass contained in a substance for a given volume.

What is the relationship between density and mass?

The mathematical relationship between mass and density is often given by the formula: Density=Mass/Volume. This can be rewritten Mass=Density x Volume.

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Keyword density is a foundational concept of search engine optimization (SEO). It’s important to understand how keyword density works, since it can have a direct impact on your site content’s visibility in search engine results pages (SERPs) and on the costs of your online marketing campaigns.

However, the relative importance of keyword density in most search engine ranking algorithms, including Google’s, has changed over the years, so it’s especially key to understand how this concept will impact your SEO in the post-Panda world.

Keyword density refers to the number of times a keyword appears on a given webpage or within a piece of content as a ratio or percentage of the overall word count. This is also sometimes referred to as keyword frequency, or the frequency with which a specific keyword appears on a webpage.

Keyword density formula

Keyword density can also be calculated as a specific figure, should you need to. To determine the keyword density of a webpage, simply divide the number of times a given keyword is mentioned by the total number of words on the page – the resulting figure is the keyword density of that page.

What Is TF-IDF?

A more advanced way of measuring keyword density, TF-IDF stands for “term frequency and inverse document frequency.” This statistic is often used in information retrieval or text mining as a way of determining how important a given term is to a document. Variations of TF-IDF may be used by search engines in some circumstances to quantify the relevance of a page’s content to a user’s search query, but as always, many other SEO factors come into play.

What’s the Right Keyword Density for SEO?

As with virtually all aspects of SEO, there are no clearly defined “rules” when it comes to keyword density. You won’t find any guidelines from Google that tell you exactly how many keywords a piece of content should contain, nor are there any specific figures or statistic you can rely upon that govern how densely keywords should or should not appear on your site.

There are, however, some considerations that can help you ensure your content is optimized that can increase the visibility of your content and improve the overall experience of your audience.

What Is Keyword Stuffing?

About 10 years ago, when SEO was still an emerging discipline, a technique known as “keyword stuffing” became very popular. Keyword stuffing is the practice of cramming as many keywords as possible on a webpage, often in a way that feels forced and unnatural to the reader.

Typically, this was accomplished by including lengthy footers at the bottom of webpages, which would contain dozens – or even hundreds – of slight keyword variants of common search terms. This technique could often be seen on hotel websites, which would often feature footers that consisted of hyperlinked keywords: “cheap hotels Barcelona”, “cheap hotels Cairo”, “cheap hotels Dresden”, for example, each of which would take visitors to another webpage featuring a similarly crowded, keyword-stuffed footer.

Google’s example of keyword stuffing

Although this practice may seem unusual today, this technique offered unscrupulous search engine optimization professionals an effortless way to rank on the first page of Google results for virtually any keyword you could imagine. At the time, Google’s algorithms were not yet sophisticated enough to interpret these keyword-stuffed pages as what they were – a cheap “hack” to engineer the SERPs – and so these pages would typically rank very highly.

Not so today. The precise factors Google uses in its search algorithms – often referred to as “ranking signals” – remain a closely guarded secret, but we do know that Google penalizes sites that employ overt keyword stuffing in thin content. As a result, you should avoid cramming as many keywords as possible into your webpages, as this is likely to have the completely opposite effect to the desired result.

Use our Free Keyword Tool to find traffic-boosting keywords for your site!

How Many Keywords Should I Use in My Content?

As we mentioned earlier, there are no hard-and-fast rules about keyword density. To complicate matters further, keyword density can and should change depending on the nature of the content in question; a timely, syndicated news article, for example, may need significantly fewer keywords to rank highly than an older evergreen blog post.

However, there are some unofficial guidelines that can help you make decisions about your keyword targeting strategy.

Many SEOs recommend including one keyword per roughly 200 words of copy. In other words, if a webpage consists of a single, 200-word paragraph, it should contain no more than one keyword. You may be able to “safely” include more keywords than this (i.e. without being penalized by Google), but roughly one keyword per 200 words of copy is considered a good benchmark by the SEO community.

What About Keyword Variants?

Keyword targeting still forms the basis of a great deal of today’s SEO techniques, and another SEO best practice you should consider adopting is that of using keyword variants.

The “Searches related to” section at the bottom of a SERP can be
a very useful tool to find new keyword variants based on actual
searches conducted by users

Keyword variants are slight variations on a given keyword. A user searching for used cars for sale, for example, may use search terms other than “used cars for sale” when trying to find a dealer. They might use “secondhand vehicles for sale” or another different yet closely related search term, such as one of the keywords featured in the image above.

The keyword intent behind these searches is the same – the user wants to locate and likely purchase a used car – but the keywords themselves may differ quite widely. This is why it is important to target keyword variants, as this anticipates the numerous ways in which a potential lead may find your business during a Google search, maximizing potential visibility for strongly commercial queries.

However, the concept of keyword variants is also highly nuanced, which can lead to mistakes and missed opportunities if handled incorrectly. Our “cheap hotels” keywords from earlier are prime examples of keyword variants that can prove problematic for newcomers to SEO.

By themselves, this kind of keyword variant – “cheap hotels Boston”, “cheap hotels Cincinnati” and so on – aren’t “bad” keywords. They can still be relevant and useful, as they would be for searchers seeking accommodations in major cities around the world. They can be harmful, however, when crammed into a webpage, as we established earlier. This means you must exercise caution and good judgment when choosing to include keyword variants in your content.

In short, you can and should use keyword variants on single webpages and across the entirety of your site to maximize visibility and appeal to as broad – and relevant – an audience as possible, but you should still aim for only a single keyword or keyword variant per 200 words of copy.

What Is Keyword Clustering?

When it comes to Google’s search algorithms, relevance is crucial. Although it’s important to avoid stuffing your webpages with keywords, Google’s algorithms are believed to “look for” groups of semantically related keywords within web content for contextual clues as to what that content is and what it does.

This is the basis of a concept known as “keyword clustering.”

When Google’s spiders – software programs that “crawl” and index the pages of a website – encounter keywords on a webpage, these programs often contextualize keywords in relation to the content surrounding them. This means that Google “expects” certain keywords to be present in relation to other keywords. As such, “clustering” relevant keywords together can be a highly effective way of increasing visibility.

For example, we could search Google to find out the tallest buildings in the United States, which would provide us with the following results:

As we can see, we’re provided with a carousel-style series of image results, each of which includes the height of each building measured in feet. The top organic search result, as it so often is, is the Wikipedia entry for the list of the tallest buildings in the United States, due to Wikipedia’s immensely strong link profile.

Let’s say you work as a content marketing manager for an architectural firm. You want a blog post about the tallest buildings in the U.S. to rank highly, so you write a listicle about America’s tallest skyscrapers. Google “knows” that the tallest building in the United States is One World Trade Center in New York City, so Google “expects” this keyword to be present in content about America’s tallest buildings.

Given that this kind of article is typically structured as a list that also usually includes several of the other buildings seen in the image above, Google may also look for these contextually relevant keywords in this content, as these keywords are often clustered together. Including other unique yet closely relevant keywords in clusters like this can be an excellent way to improve the relevance, and therefore visibility, of your content.

Test Early, Test Often

As with almost everything in the world of SEO, it’s crucial to use hard data rather than assumptions when making decisions about keyword targeting, including density.

Be sure to A/B test your site copy, content, and ads to ensure that you aren’t inadvertently harming the visibility of your site or ads in search results. If you notice a decline in traffic or impression share, conduct A/B tests of your content and copy to see whether reducing keyword density improves your ranking.

Use our Free Keyword Tool to find traffic-boosting keywords for your site!