iris.edu Website Information
Daily Unique Visits: 69,795
Daily Page Views: 418,770
Income Per Day: $838
Estimated Value: $603,360
This website is located in Unknown Zone and is using following IP address no. See the complete list of popular websites hosted in Unknown Zone.
iris.edu is registered under .EDU top-level domain. Please check other sites in .EDU zone.
Website iris.edu is using the following name servers:
- no
and is probably hosted by RMH-14 - Rackspace Hosting, US. See the full list of other websites hosted by RMH-14 - Rackspace Hosting, US.
The highest website iris.edu position in Alexa rank database was 18696 and the lowest rank position was 20634. Current position of iris.edu in Alexa rank database is 20549.
Desktop speed score of iris.edu (74/100) is better than the results of 57.94% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of iris.edu (96/100) is better than the results of 46.59% of other sites and means that the page is mobile-friendly.
Mobile speed score of iris.edu (64/100) is better than the results of 64.03% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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iris.edu Alexa Rank
The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.
iris.edu whois
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Domain Name: IRIS.EDU
Registrant:
Incorporated Research Institutions for Seismology
1200 New York Ave. NW, Suite 400
Suite 400
Washington, DC 20005
USA
Administrative Contact:
Domain Admin
IRIS
1200 New York Ave. NW
Suite 400
Washington, DC 20005
USA
+1.2026822220
dnsbilling@iris.edu
Technical Contact:
Inge Watson
IRIS
1200 New York Ave. NW
Suite 400
Washington, DC 20005
USA
+1.2026822220
inge.watson@earthscope.org
Name Servers:
IRIS-NS.DS.IRIS.EDU
NS-EXT.DS.IRIS.EDU
NS-EXT.ADC1.IRIS.EDU
Domain record activated: 01-Jun-1989
Domain record last updated: 06-Jun-2024
Domain expires: 31-Jul-2027
iris.edu server information
Servers Location
iris.edu desktop page speed rank
Last tested: 2018-01-20
iris.edu Desktop Speed Test Quick Summary
priority - 18Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
http://www.iris.edu/hq/,qcss==_css,_2012.v.1513276…peed.cc.ZDtuDWLB8i.css
https://fonts.googleapis.com/css?family=Arimo:400,700,400italic
https://code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.min.css
priority - 7Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 68KiB (35% reduction).
Compressing and resizing http://ds.iris.edu/seismon/views/eveday//imgs/seismon_transp.gif?1516427815 could save 26.1KiB (25% reduction).
Compressing http://www.iris.edu/hq/files/Science_Highlights/Chile-eartquake.jpg could save 6.1KiB (30% reduction).
priority - 5Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
http://www.iris.edu/hq/files/Science_Highlights/Chile-eartquake.jpg (5 minutes)
http://www.iris.edu/hq/files/Science_Highlights/alaska/amin.jpg (5 minutes)
http://www.iris.edu/hq/files/instrumentation/D27M_…_EndersMax_2-lores.png (5 minutes)
http://www.iris.edu/hq/images/layout/buttons/arrow_button_shadow.png (5 minutes)
http://www.iris.edu/hq/images/layout/choose_community.png (5 minutes)
http://www.iris.edu/hq/images/layout/earthquake_resources.png?v=1 (5 minutes)
http://www.iris.edu/hq/images/layout/feature/arrows.png (5 minutes)
http://www.iris.edu/hq/images/layout/subscribe_button.png (5 minutes)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 3Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://www.iris.edu/
http://www.iris.edu/hq/
priority - 0Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 3.1KiB (21% reduction).
Minifying https://code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.min.css could save 609B (12% reduction) after compression.
iris.edu Desktop Resource Breakdown
Total Resources | 37 |
Number of Hosts | 10 |
Static Resources | 27 |
JavaScript Resources | 10 |
CSS Resources | 4 |
iris.edu mobile page speed rank
Last tested: 2017-04-27
iris.edu Mobile Speed Test Quick Summary
priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 7 blocking script resources and 9 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
http://www.iris.edu/hq/_js/bootstrap-3.3.4.min
http://www.iris.edu/hq/_js/jquery-ui-1.10.4.min
http://www.iris.edu/hq/_js/cookie.jquery
http://www.iris.edu/hq/_js/jquery.tools.min
http://www.iris.edu/hq/_js/jquery.tablesorter.min
http://www.iris.edu/hq/_js/jquery.nivo.slider.pack
Optimize CSS Delivery of the following:
http://www.iris.edu/hq/?css=_css/2012.v.1489685793
https://fonts.googleapis.com/css?family=Istok+Web:400,700,400italic
https://fonts.googleapis.com/css?family=News+Cycle:400,700
http://www.iris.edu/hq/?css=_css/hq-styles.v.1453387259
http://www.iris.edu/hq/?css=_css/megamenu2.v.1482351321
http://www.iris.edu/hq/?css=_css/nivo-slider.v.1481310028
http://www.iris.edu/hq/?css=_css/consortium-page.v.1453387259
http://www.iris.edu/hq/?css=_css/jquery-ui-1.10.4.min.v.1487866580
priority - 15Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
http://www.iris.edu/hq/files/F-C-E_Features/Wavefields-BB-demob_banner.jpg (expiration not specified)
http://www.iris.edu/hq/files/F-C-E_Features/iditarod-cropped.jpg (expiration not specified)
http://www.iris.edu/hq/files/Science_Highlights/IMG_2380_2.jpg (expiration not specified)
http://www.iris.edu/hq/files/Science_Highlights/Matt_copy_2.jpg (expiration not specified)
http://www.iris.edu/hq/files/Science_Highlights/Mu…ens/MSH_xsec_wide.jpeg (expiration not specified)
http://www.iris.edu/hq/files/instrumentation/Ryan_Bierma_IRIS(1)_0-2.png (expiration not specified)
http://www.iris.edu/hq/images/layout/buttons/arrow_button_shadow.png (expiration not specified)
http://www.iris.edu/hq/images/layout/buttons/social-top.png (expiration not specified)
http://www.iris.edu/hq/images/layout/choose_community.png (expiration not specified)
http://www.iris.edu/hq/images/layout/earthquake_resources.png (expiration not specified)
http://www.iris.edu/hq/images/layout/feature/bullet.png (expiration not specified)
http://www.iris.edu/hq/images/layout/logos/iris_logo_shadow.png (expiration not specified)
http://www.iris.edu/hq/images/layout/logos/nsf.png (expiration not specified)
http://www.iris.edu/hq/images/layout/navigation/display.jpg (expiration not specified)
http://www.iris.edu/hq/images/layout/navigation/learning.jpg (expiration not specified)
http://www.iris.edu/hq/images/layout/navigation/seismon.jpg (expiration not specified)
http://www.iris.edu/hq/images/layout/navigation/waves.jpg (expiration not specified)
http://www.iris.edu/hq/images/layout/subscribe_button.png (expiration not specified)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 1Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 13.8KiB (35% reduction).
Compressing http://www.iris.edu/hq/files/Science_Highlights/IMG_2380_2.jpg could save 5.1KiB (28% reduction).
priority - 0Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 2.3KiB (18% reduction).
Minifying http://www.iris.edu/hq/?css=_css/jquery-ui-1.10.4.min.v.1487866580 could save 609B (12% reduction) after compression.
Minifying http://www.iris.edu/hq/?css=_css/hq-styles.v.1453387259 could save 515B (37% reduction) after compression.
priority - 0Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 1.6KiB (15% reduction).
iris.edu Mobile Resource Breakdown
Total Resources | 45 |
Number of Hosts | 6 |
Static Resources | 29 |
JavaScript Resources | 8 |
CSS Resources | 9 |
iris.edu mobile page usability
Last tested: 2017-04-27
iris.edu Mobile Usability Test Quick Summary
priority - 3Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
<a href="http://www.iris.edu/hq/retm/">Recent Earthqu…chable Moments</a>
and 2 others are close to other tap targets.The tap target
<a href="http://www.iri…ce/researchers">Research</a>
and 4 others are close to other tap targets.The tap target
<a href="http://www.iri…ed_lectureship">Distinguished Lectureship</a>
and 8 others are close to other tap targets.The tap target
<a href="http://www.iris.edu/hq/"></a>
is close to 1 other tap targets.The tap target
<a href="//www.nsf.gov/">Sponsored by t…nce Foundation</a>
is close to 2 other tap targets.iris.edu HTML validation
Errors
Attribute “http-equiv” not allowed on element “meta” at this point.
"...<noscript><meta HTTP-EQUIV="refresh" content="0;url='http://www.iris.edu/hq/?PageSpeed=noscript'" /><style..."
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
"...<noscript><meta HTTP-EQUIV="refresh" content="0;url='http://www.iris.edu/hq/?PageSpeed=noscript'" /><style..."
Element “style” not allowed as child of element “noscript” in this context. (Suppressing further errors from this subtree.)
"...cript'" /><style><!--ta..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
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"...DATA</h4> <img src="data:image/jpeg;base64,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" class="block-left img-thumbnail" data-pagespeed-lsc-url="http://www.iris.edu/hq/images/layout/navigation/waves.jpg" data-pagespeed-lsc-hash="z0gU3CVf3M" data-pagespeed-lsc-expiry="Tue, 05 Dec 2017 11:50:20 GMT"/> <div ..." Line: 185 Column: 1 - 3445
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"...TIES</h4> <img src="data:image/jpeg;base64,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" class="block-left img-thumbnail" data-pagespeed-lsc-url="http://www.iris.edu/hq/images/layout/navigation/learning.jpg" data-pagespeed-lsc-hash="g9fjnXc7p8" data-pagespeed-lsc-expiry="Tue, 05 Dec 2017 11:50:20 GMT"/> <div ..." Line: 638 Column: 53 - 1271
"...le="IRIS"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJQAAAAeCAMAAAD9ycdYAAAAM1BMVEV5eXn///95eXl5eXl5eXl5eXl5eXl5eXl5eXl5eXl5eXl5eXl5eXl5eXl5eXl5eXl5eXmMP5JiAAAAEHRSTlMAABEiM0RVZneImaq7zN3uf6QJ9gAAAmBJREFUWMPtl8uO3CAQRU8wGMzz/v/XZgHYuOWeiTRZRFGzsFzuC5x6UKj59Q8OPlB/DsVfGLm+t76bmu/2fw71E38+UD+CCrJAkJufNx2mJsDUa0Js25NwvPkANhqOGG23gFAklXDt54rUpm1ik1RjyeC0jXW0dSjTDsC0OOcGbQSZ8TaWaJFH4UDO4LU3pWS7BbkGMFHlkgfwtRgA14oHE4seoYith8KMyS3DpsB8MuPzJFyhVLbTwo+N7NTssgA9Ce5cOWdwsq9QVh5w8nPyDqR6O9ylwLNwgarmsoivfaEODCeHaYkblHuFomSAWUCp9R0d4IfadseehAuUXyyOM7fThRngchDOaL+F6rURRnhH9bYIp0dHX/FReEGtFcamYlaooyxvJfEdlFG4NpnVezRz0szifhS+gcJLMaxtPo5RGgrfQo0KLm1NTi/yXWHJ4qPwHRQ2S0ozXFnX4Mz0F1BOOzj159TnAmSVtd4fhe+ggC2e1X9rkn8SKWqCqJrWA+9l2VRll87wKPwCCpxGWzvaAvVSU/YRKmgzLQaZ3iDPfhlk2zE6Ke+EX0KNjN8ayK0ecwYzf7tBGQUvZxSC7HVemqmZo3E1lWfhl1BBM8jl+tg76JXWMsKZVihSzRVSLctMqyiPVVp9fBI+Q+1XwsdyI7a2r71C+e7irhvULgXYtVYvRQ0oqrceeBd65Wcor+zAlbpBHZ04bxCS3Hn3cRTlnmQPUfEGRZUB2lq9eB3zHl1ui7twQJUbVAGwUZKiYUJhk6QWhztHlZRjvyUIVcrWRvP5N/OB+kB9oO7jNzJxKV+KsvsXAAAAAElFTkSuQmCC" data-pagespeed-lsc-url="http://www.iris.edu/hq//images/layout/logos/URL_TXT.png" data-pagespeed-lsc-hash="UJnY0S09fr" data-pagespeed-lsc-expiry="Tue, 05 Dec 2017 11:50:21 GMT"/></a></..."
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"...-heading"><a href="http://www.earthscope.org/" title="EarthScope" target="_bank">EarthS..." Line: 623 Column: 5 - 89
"...</li> <li><a href="http://www.earthscope.org/about/observatories" title="SAFOD" target="_bank">SAFOD<..." Line: 624 Column: 5 - 69
"...</li> <li><a href="http://www.usarray.org/" title="USArray" target="_bank">USArra..." Line: 625 Column: 5 - 87
"...</li> <li><a href="http://pbo.unavco.org/" title="Plate Boundary Observatory" target="_bank">Plate ..." Line: 629 Column: 5 - 102
"...</li> <li><a href="//www.passcal.nmt.edu/maps/funded" title="Portable (PASSCAL) Experiments" target="_bank">Portab..."
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iris.edu Ping
Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
iris.edu TRACEROUTE
Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.