1.5 sec in total
336 ms
940 ms
182 ms
Click here to check amazing Prehistory content for United States. Otherwise, check out these important facts you probably never knew about prehistory.com
Dinosaurs! Prehistoric Dinosaur Pictures Art Gallery. Learn about dinosaur timeline, dinosaur extinction, dinosaur anatomy, dinosaur facts, dinosaur fossils
Visit prehistory.comWe analyzed Prehistory.com page load time and found that the first response time was 336 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
prehistory.com performance score
name
value
score
weighting
Value1.1 s
99/100
10%
Value2.0 s
97/100
25%
Value1.1 s
100/100
10%
Value20 ms
100/100
30%
Value0
100/100
15%
Value2.1 s
99/100
10%
336 ms
156 ms
9 ms
430 ms
118 ms
Our browser made a total of 18 requests to load all elements on the main page. We found that 83% of them (15 requests) were addressed to the original Prehistory.com, 11% (2 requests) were made to Google-analytics.com and 6% (1 request) were made to Jumpcb.com. The less responsive or slowest element that took the longest time to load (430 ms) relates to the external source Jumpcb.com.
Page size can be reduced by 22.8 kB (36%)
62.6 kB
39.8 kB
In fact, the total size of Prehistory.com main page is 62.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Javascripts take 25.5 kB which makes up the majority of the site volume.
Potential reduce by 16.0 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 2.8 kB, which is 13% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 16.0 kB or 76% of the original size.
Potential reduce by 0 B
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Prehistory images are well optimized though.
Potential reduce by 6.8 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 6.8 kB or 27% of the original size.
We found no issues to fix!
17
17
The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Prehistory. According to our analytics all requests are already optimized.
prehistory.com
336 ms
AC_RunActiveContent.js
156 ms
ga.js
9 ms
9.gif
430 ms
stars.gif
118 ms
mainlogo.jpg
128 ms
joseph.gif
195 ms
bluefspc.gif
160 ms
Mainnav_01.gif
182 ms
Mainnav_02.gif
215 ms
Mainnav_03.gif
217 ms
Mainnav_04.gif
183 ms
mainbar3.gif
217 ms
__utm.gif
11 ms
Mainnav_01-over.gif
55 ms
Mainnav_02-over.gif
64 ms
Mainnav_03-over.gif
88 ms
Mainnav_04-over.gif
63 ms
prehistory.com accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
Links do not have a discernible name
prehistory.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Browser errors were logged to the console
prehistory.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Document uses plugins
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Prehistory.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Prehistory.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
prehistory.com
Open Graph description is not detected on the main page of Prehistory. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: