1.5 sec in total
105 ms
1.3 sec
167 ms
Click here to check amazing Sinauer content for United States. Otherwise, check out these important facts you probably never knew about sinauer.com
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Visit sinauer.comWe analyzed Sinauer.com page load time and found that the first response time was 105 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
sinauer.com performance score
name
value
score
weighting
Value4.3 s
18/100
10%
Value4.3 s
42/100
25%
Value4.7 s
69/100
10%
Value1,030 ms
26/100
30%
Value0
100/100
15%
Value6.2 s
62/100
10%
105 ms
488 ms
99 ms
65 ms
67 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 95% of them (61 requests) were addressed to the original Sinauer.com, 3% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (488 ms) belongs to the original domain Sinauer.com.
Page size can be reduced by 686.3 kB (26%)
2.7 MB
2.0 MB
In fact, the total size of Sinauer.com main page is 2.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.
Potential reduce by 24.7 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 4.2 kB, which is 14% 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 24.7 kB or 83% of the original size.
Potential reduce by 113.9 kB
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. Sinauer images are well optimized though.
Potential reduce by 422.4 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 422.4 kB or 76% of the original size.
Potential reduce by 125.4 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Sinauer.com needs all CSS files to be minified and compressed as it can save up to 125.4 kB or 85% of the original size.
Number of requests can be reduced by 25 (40%)
62
37
The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sinauer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
sinauer.com
105 ms
www.sinauer.com
488 ms
styles.css
99 ms
jcarousel.css
65 ms
widgets.css
67 ms
category.css
69 ms
product.css
67 ms
vertnav.css
70 ms
prototype.js
170 ms
ccard.js
112 ms
validation.js
114 ms
builder.js
112 ms
effects.js
114 ms
dragdrop.js
129 ms
controls.js
132 ms
slider.js
128 ms
js.js
128 ms
form.js
133 ms
menu.js
161 ms
translate.js
160 ms
cookies.js
160 ms
msrp.js
160 ms
jquery.min.js
232 ms
jquery.bxSlider.js
191 ms
jquery.noconflict.js
188 ms
jcarousel.min.js
188 ms
css
70 ms
sinauer_asso_brand.png
50 ms
LifeElephants.jpg
146 ms
PoL2e.jpg
211 ms
Cain3e.jpg
146 ms
PurvesNeuro.jpg
146 ms
Futuyma.jpg
144 ms
Cooper.jpg
237 ms
Breedlove.jpg
194 ms
Blumenfeld.jpg
197 ms
Gilbert.jpg
202 ms
Alcock.jpg
221 ms
developmentalbiology11_3.png
228 ms
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259 ms
animalphysiology4.png
237 ms
learningandbehavior2.png
244 ms
anintroductiontoconservationbiology_1.png
257 ms
thecell7_4.png
289 ms
themindsmachine2_3.png
269 ms
moleculargenomeevol1.png
271 ms
plantsystematics4_2.png
279 ms
photogalleryofvascularplants_6.png
295 ms
coversa.png
296 ms
evolutionarymedicine1.png
306 ms
herpetology4.png
308 ms
ebrain2_5.png
312 ms
ga.js
40 ms
head_cart.png
311 ms
nav_tile.png
303 ms
sidebar_nav_sub.png
304 ms
whiteblock_bottom_shadow.png
312 ms
list_item_arrow.png
315 ms
__utm.gif
12 ms
footer_bg.png
211 ms
facebook_icon.png
218 ms
feature_slider_prev.png
226 ms
feature_slider_next.png
227 ms
print.css
37 ms
sinauer.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
sinauer.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
sinauer.com SEO score
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sinauer.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Sinauer.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
sinauer.com
Open Graph description is not detected on the main page of Sinauer. 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: