Free science and math simulations for teaching STEM topics, including physics, chemistry, biology, and math, from University of Colorado Boulder
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Website Topics simulations, phet
Top Keywords from Search Engines phet, optical simulation, cu + 2 more>> is ranked 4,369th in the world (amongst the 30 million domains). A low-numbered rank means that this website gets lots of visitors. This site is relatively popular among users in the united states. It gets 59.8% of its traffic from the united states . This site is estimated to be worth $1046762. It has 274 backlinks. has 68% seo score.
Popularity: Safety: Social signals: Legit: legal Rating:

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Web Safety is a safe website. This information is from Google, AVG Threat Labs, McAfee SiteAdvisor, Wot.

Google Safebrowsing: Safe
Avg Antivirus n\a
Wot Raiting Excellent
SiteAdvisor n\a
Child Safety Excellent


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General Statistics

Title: PhET: Free online physics, chemistry, biology, earth science and math simulations
Description: Free science and math simulations for teaching STEM topics, including physics, chemistry, biology, and math, from University of Colorado Boulder
SEO score: 68%
Website Worth: $1,046,762 USD
Web Safety:
Web safety signals the level of trust for the site's suitability for all users.
Child Safety:
Child safety signals the level of trust for the site's suitability for children.
Alexa Rank: 4,369
Primary Traffic:
The country where current domain is most popular relative to the other countries
united states
Alexa backlinks: 34,208
Webstatsdomain backlinks:
IP-address: [Trace] [Reverse]
Date Registered: 2004-07-22 04:00:00
Site Age: 13 years and 7 months
Pageviews per User: 5.01
Average Time on Site: 05:13
Search Percent:
Estimated percentage of visits to that came from a search engine
Estimated percentage of visits to that consist of a single pageview
Daily Pageviews: n\a
Contact information: try to find contact info in whois information
Load Time: 0.71 seconds

Website categories

Currently, we found 2 categories on
simulations 1'741 sites phet 26 sites

Domain Name

Domain Name:
Domain Age: 13 years and 7 months
Creation: 2004-07-22
Expiration: 2012-07-22
See whois information

Top Keywords

This report shows links that we found on other domains than the index page. You can use this list of domains in order to understand what content users like.

Keyword Position Date
magnetic field simulator
1 2016-02-14
gravity force
1 2016-02-13
jogo do labirinto
1 2016-02-13
1 2016-02-12
geometrijska optika
1 2016-02-11
projectiles launched at an angle lab
1 2016-02-11
natuurkunde applets
1 2016-02-09
periodic table games for high school
1 2016-02-08
landing on the moon video game
1 2016-02-06
interactive simulations
1 2016-02-04

Keywords Consistency

In this table we show keywords that are most commonly found on the site. Words marked with 2 or 3 stars best describe the theme of the site.

This site is well optimized for words - phet, simulations

  Keywords Freq Title Desc <H> Anchors
phet 13
simulations 7
math 6
science 6
image 5
  Keywords (2 words) Freq Title Desc <H> Anchors
university of colorado 4
phet home page 4
science and math 3
math simulations 2
search the phet 2
  Keywords (3 words) Freq Title Desc <H> Anchors
science and math simulations 2
physics chemistry biology 2
university of colorado boulder 2


Bad, your website is not structured using HTML headings (<H1> to <H6>). You urgently need to use HTML headings (<H1> to <H6>),necessarily need to use H1 Heading Tag.

<H1> <H2> <H3> <H4> <H5> <H6>

Anchors Cloud

Anchors Cloud: List of most used anchor phrases in the anchor tags of the referring domains. An example would be "webstatsdomain" in "<a href="">webstatsdomain</a>"

  • phet( 35% )
  • <a>image</a>( 12% )
  • phet simulations( 12% )
  • arithmetic( 9% )
  • fourier: making waves( 9% )
  • 6% )
  • 6% )
  • phet laboratory( 6% )

Terms Cloud

List of most used terms in the anchor text of the referring domains. An example would be "Webstatsdomain" in "<a href="">Free website statistics, analysis, review - Webstatsdomain</a>"

  • phet( 27% )
  • waves( 9% )
  • 9% )
  • laboratory( 9% )
  • making( 9% )
  • fourier( 9% )
  • <a>image</a>( 9% )
  • simulations( 9% )
  • arithmetic( 9% )

Alexa traffic graph

Alexa traffic rank shows the popularity of your site relative to other sites. is ranked 4,369th in the world (among the 30 million domains). A low-numbered rank means that your website gets a lot of visitors.

Alexa rank: 4,369 visit alexa Alexa backlinks: 34,208
This report show rough estimate of's popularity
The top queries driving traffic to from search engines.
solubility of salts
transformer design pdf
stability of structures
university of colorado
common properties of wave
common properties wave
phet simulations
university of colorado boulder

Visitors Localization

Traffic Estimations High
Traffic Rank 4,369th most visited website in the World
united states 59.8 india 6.8
china 5.9 japan 2.1
canada 1.6

Website Load Time

Website load time is an important factor, because Google is taking the site’s loading speed into consideration in determining its ranking. Even though this will not have a big impact, it is still something we (webmasters) should really look into. The reason is pretty simple – the majority of visitors are usually in a rush and no one is fond of waiting half a century before the website finally loads its content or fails to load. At the last check on 2016-08-30, website load time was 0.71. The highest load time is 0.71, the lowest load time is 0.27, the average load time is 0.39.


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