23.8 sec in total
156 ms
15.8 sec
7.8 sec
Visit iris.edu now to see the best up-to-date Iris content for Japan and also check out these interesting facts you probably never knew about iris.edu
Seismological Facility for the Advancement of Geoscience (SAGE) is a distributed, multi-user national facility operated by EarthScope that provides state of-the-art seismic and related geophysical ins...
Visit iris.eduWe analyzed Iris.edu page load time and found that the first response time was 156 ms and then it took 23.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
iris.edu performance score
name
value
score
weighting
Value5.6 s
5/100
10%
Value10.4 s
0/100
25%
Value6.2 s
43/100
10%
Value1,260 ms
19/100
30%
Value0.004
100/100
15%
Value10.2 s
25/100
10%
156 ms
952 ms
1671 ms
2037 ms
1900 ms
Our browser made a total of 41 requests to load all elements on the main page. We found that 59% of them (24 requests) were addressed to the original Iris.edu, 10% (4 requests) were made to Cdnjs.cloudflare.com and 7% (3 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (4.2 sec) relates to the external source Cdnjs.cloudflare.com.
Page size can be reduced by 393.2 kB (16%)
2.5 MB
2.1 MB
In fact, the total size of Iris.edu main page is 2.5 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. 40% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.
Potential reduce by 41.7 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 41.7 kB or 72% of the original size.
Potential reduce by 74.3 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. Iris images are well optimized though.
Potential reduce by 118.5 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 118.5 kB or 60% of the original size.
Potential reduce by 158.7 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. Iris.edu needs all CSS files to be minified and compressed as it can save up to 158.7 kB or 78% of the original size.
Number of requests can be reduced by 17 (49%)
35
18
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Iris. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
iris.edu
156 ms
952 ms
bootstrap.min.css
1671 ms
jquery-ui.min.css
2037 ms
jquery.min.js
1900 ms
bootstrap.min.js
2274 ms
jquery-ui.min.js
2273 ms
js.cookie.min.js
2274 ms
jquery.tools.min
1380 ms
jquery.inputmask.bundle.min.js
2289 ms
jquery.tablesorter.min.js
4219 ms
jquery.nivo.slider.pack.min.js
2301 ms
css
555 ms
iris_logo_shadow.png.pagespeed.ce.TQ-1ZgTiF4.png
3714 ms
seismon_transp.gif
3324 ms
xsocial-top.png.pagespeed.ic.vBSf1SBcVB.png
2759 ms
nsf.png.pagespeed.ce.gn_ID7xTwV.png
2759 ms
xseismon.jpg.pagespeed.ic.jbez9LxDx7.jpg
2825 ms
xwaves.jpg.pagespeed.ic.DM7gPfLt7w.jpg
2824 ms
xdisplay.jpg.pagespeed.ic.epOWo9iYNP.jpg
2824 ms
xlearning.jpg.pagespeed.ic.WaK-G1AGHu.jpg
2759 ms
xOBS-Symposium-1.png.pagespeed.ic.u7pmpu2ZwF.jpg
2827 ms
xamin.jpg.pagespeed.ic.lWF2gYXvZK.jpg
3248 ms
xRyan_Bierma_IRIS,281,29_0-2.png.pagespeed.ic.l5iKWgjc64.jpg
3040 ms
xearthquake_resources.png,qv=1.pagespeed.ic.mE9miTmTqO.png
2824 ms
xF2.large.jpg.pagespeed.ic.5GbjpBKjsL.jpg
2824 ms
x800px-Gustave_Courbet_-_The_Gust_of_Wind_-_Google_Art_Project.jpg.pagespeed.ic.umosEQRRsg.jpg
2824 ms
xsan_luis_front.jpg.pagespeed.ic.D3VMp5TdVm.jpg
2825 ms
choose_community.png.pagespeed.ce.iiQfBbW1nS.png
3245 ms
subscribe_button.png.pagespeed.ce.eQuB11CFp2.png
3039 ms
URL_TXT.png.pagespeed.ce.SjdKi9KGr7.png
3246 ms
GyrB9qm3gnUt6yGU4LYoC6CWcynf_cDxXwCLxiixG1c.ttf
787 ms
eFfAHNfFT0YtF77QmRKRj3YhjbSpvc47ee6xR_80Hnw.ttf
757 ms
glyphicons-halflings-regular.woff
284 ms
arrow_button_shadow.png.pagespeed.ce.FcJfdKaTpf.png
75 ms
analytics.js
228 ms
Txydg0x0i-Wwp80d6axZsgLUuEpTyoUstqEm5AMlJo4.ttf
497 ms
collect
39 ms
bullet.png
550 ms
arrows.png.pagespeed.ce.GbF8mf4ohk.png
472 ms
A.,,qcss==_css,,_2012.v.1499708964+,,qcss==_css,,_hq-styles.v.1453387259+,,qcss==_css,,_megamenu2.v.1494525806+,,qcss==_css,,_nivo-slider.v.1494525806+,,qcss==_css,,_consortium-page.v.1453387259,Mcc.l_FmkVp1C2.css.pagespeed.cf.HdV3CvjHvN.css
65 ms
iris.edu 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
iris.edu 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
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
iris.edu 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
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Iris.edu 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 Iris.edu 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.
iris.edu
Open Graph description is not detected on the main page of Iris. 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: