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si.edu Website Information

Daily Unique Visits: 3,611,057

Daily Page Views: 28,888,456

Income Per Day: $28,888

Estimated Value: $31,199,040

This website is located in United States and is using following IP address 160.111.244.22. See the complete list of popular websites hosted in United States.

si.edu is registered under .EDU top-level domain. Please check other sites in .EDU zone.

Website si.edu is using the following name servers:

  • SI-NAMES1.si.edu
  • SI-NAMES2.si.edu

and is probably hosted by SMITHSONIAN - Smithsonian Institution, US. See the full list of other websites hosted by SMITHSONIAN - Smithsonian Institution, US.

The highest website si.edu position in Alexa rank database was 411 and the lowest rank position was 427. Current position of si.edu in Alexa rank database is 422.

Desktop speed score of si.edu (83/100) is better than the results of 76.15% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of si.edu (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of si.edu (80/100) is better than the results of 88.23% of other sites and shows that the landing page performance on mobile devices is excellent.

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si.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.


si.edu whois

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or related to .edu domain registration records.

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A Web interface for the .EDU EDUCAUSE Whois Server is
available at: http://whois.educause.edu

By submitting a Whois query, you agree that this information
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-------------------------------------------------------------

Domain Name: SI.EDU

Registrant:
Smithsonian Institution
380 Herndon Parkway
Herndon, VA 20170
US

Administrative Contact:
Brian Alpert
Smithsonian Institution
380 Herndon Parkway, MRC 1010
Herndon, VA 20170
US
+1.2026333955
alpertb@si.edu

Technical Contact:
Joseph Johnston
Smithsonian Institution
380 Herndon Parkway
Herndon, VA 20170
US
+1.2026332715
johnstonj@si.edu

Name Servers:
SI-NAMES1.SI.EDU
SI-NAMES2.SI.EDU

Domain record activated: 19-Jun-1992
Domain record last updated: 25-Mar-2021
Domain expires: 31-Jul-2021

si.edu server information

Servers Location

si.edu desktop page speed rank

Last tested: 2017-05-24


Desktop Speed Medium
83/100

si.edu Desktop Speed Test Quick Summary


priority - 9Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 84.9KiB (72% reduction).

Compressing https://www.si.edu/ could save 56.5KiB (79% reduction).
Compressing https://www.si.edu/sites/default/files/googleanalytics/analytics.js?oq7hq0 could save 17.2KiB (58% reduction).
Compressing https://www.si.edu/sites/all/themes/si_baseline/js/webtrends.js could save 11.2KiB (69% reduction).

priority - 4Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 41.6KiB (47% reduction).

Compressing https://www.si.edu/sites/default/files/historic-castle-400.jpg could save 39.4KiB (52% reduction).
Compressing https://www.si.edu/sites/all/themes/si_baseline/im…os/logo.png?1486598614 could save 2.2KiB (16% reduction).

priority - 2Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 22KiB (22% reduction).

Minifying https://www.si.edu/sites/default/files/js/js_BLxot…fdnkQfnN-_ADBTW3SiE.js could save 5.7KiB (46% reduction) after compression.
Minifying https://www.si.edu/sites/default/files/js/js_jUGMA…5Zo2RFUW2xbLBM2kqrc.js could save 4.7KiB (13% reduction) after compression.
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Minifying https://www.si.edu/sites/default/files/js/js_hdKS3…kgPZkl2f92WxycmqwVQ.js could save 3.3KiB (32% reduction) after compression.
Minifying https://www.si.edu/sites/all/themes/si_baseline/js/webtrends.js could save 2.2KiB (14% reduction).
Minifying https://www.si.edu/fsrscripts/foresee-surveydef.js?build=11 could save 1.2KiB (45% reduction) after compression.
Minifying https://www.si.edu/sites/default/files/js/js_n7Rcm…LO4awRHIOSSv2x9zWJw.js could save 1.1KiB (22% reduction) after compression.

priority - 2Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

https://www.si.edu/sites/default/files/css/css_CiO…h_qrpcyh63V18HN_6I.css

priority - 1Leverage 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:

https://www.si.edu/fsrscripts/triggerParams.js (expiration not specified)

si.edu Desktop Resource Breakdown

Total Resources58
Number of Hosts8
Static Resources42
JavaScript Resources12
CSS Resources7

si.edu mobile page speed rank

Last tested: 2017-05-24


Mobile Speed Medium
80/100

si.edu Mobile Speed Test Quick Summary


priority - 9Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 84.9KiB (72% reduction).

Compressing https://www.si.edu/ could save 56.5KiB (79% reduction).
Compressing https://www.si.edu/sites/default/files/googleanalytics/analytics.js?oq7hq0 could save 17.2KiB (58% reduction).
Compressing https://www.si.edu/sites/all/themes/si_baseline/js/webtrends.js could save 11.2KiB (69% reduction).

priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

https://www.si.edu/sites/default/files/css/css_CiO…h_qrpcyh63V18HN_6I.css

priority - 4Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 41.6KiB (47% reduction).

Compressing https://www.si.edu/sites/default/files/historic-castle-400.jpg could save 39.4KiB (52% reduction).
Compressing https://www.si.edu/sites/all/themes/si_baseline/im…os/logo.png?1486598614 could save 2.2KiB (16% reduction).

priority - 2Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 20.8KiB (21% reduction).

Minifying https://www.si.edu/sites/default/files/js/js_BLxot…fdnkQfnN-_ADBTW3SiE.js could save 5.7KiB (46% reduction) after compression.
Minifying https://www.si.edu/sites/default/files/js/js_jUGMA…5Zo2RFUW2xbLBM2kqrc.js could save 4.7KiB (13% reduction) after compression.
Minifying https://www.si.edu/sites/default/files/js/js_pqj7d…gaV3FakVHsJbyb_L_1w.js could save 3.8KiB (21% reduction) after compression.
Minifying https://www.si.edu/sites/default/files/js/js_hdKS3…kgPZkl2f92WxycmqwVQ.js could save 3.3KiB (32% reduction) after compression.
Minifying https://www.si.edu/sites/all/themes/si_baseline/js/webtrends.js could save 2.2KiB (14% reduction).
Minifying https://www.si.edu/sites/default/files/js/js_n7Rcm…LO4awRHIOSSv2x9zWJw.js could save 1.1KiB (22% reduction) after compression.

priority - 1Leverage 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:

https://www.si.edu/fsrscripts/triggerParams.js (expiration not specified)

si.edu Mobile Resource Breakdown

Total Resources57
Number of Hosts9
Static Resources42
JavaScript Resources12
CSS Resources6

si.edu mobile page usability

Last tested: 2017-05-24


Mobile Usability Good
99/100

si.edu Mobile Usability Test Quick Summary


priority - 1Size 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.

The tap target <a href="/contacts">Contact Us</a> and 8 others are close to other tap targets.

si.edu HTML validation

Errors

A “charset” attribute on a “meta” element found after the first 1024 bytes.

Line: 10 Column: - 23
"... charset="utf-8" /> <link rel=..."

Bad value “cleartype” for attribute “http-equiv” on element “meta”.

Line: 14 Column: 1 - 44
"...ml8wp" /> <meta http-equiv="cleartype" content="on" /> <link..."

Duplicate attribute “class”.

Line: 154 Column: - 101
"...ane-284" class="panel-pane pa..." Line: 165 Column: - 239
"..."article" class="node node--sl..." Line: 196 Column: - 211
"..."article" class="node node--sl..." Line: 230 Column: - 218
"..."article" class="node node--sl..." Line: 264 Column: - 216
"..."article" class="node node--sl..." Line: 298 Column: - 234
"..."article" class="node node--sl..." Line: 332 Column: - 212
"..."article" class="node node--sl..." Line: 377 Column: - 99
"...ane-285" class="panel-pane pa..." Line: 391 Column: - 138
"...item-824" class="entity entity..." Line: 414 Column: - 151
"...item-825" class="entity entity..." Line: 439 Column: - 155
"...item-642" class="entity entity..." Line: 451 Column: - 171
"...item-643" class="entity entity..." Line: 461 Column: - 200
"..."article" class="node node--te..." Line: 486 Column: - 200
"..."article" class="node..." Line: 511 Column: - 197
"..."article" class="node node--te..." Line: 535 Column: - 195
"..."article" class="node node--te..." Line: 560 Column: - 198
"..."article" class="node node--te..." Line: 585 Column: - 197
"..."article" class="node node--te..." Line: 610 Column: - 194
"..."article" class="node node--te..." Line: 634 Column: - 210
"..."article" class="node node--te..." Line: 658 Column: - 205
"..."article" class="node node--te..." Line: 683 Column: - 207
"..."article" class="node node--te..." Line: 708 Column: - 200
"..."article" class="node node--te..." Line: 733 Column: - 214
"..."article" class="node node--te..." Line: 767 Column: - 213
"...tem-2231" class="entity entity..." Line: 771 Column: - 195
"...tem-2228" class="entity entity..." Line: 790 Column: - 195
"...tem-2229" class="entity entity..." Line: 809 Column: - 195
"...tem-2226" class="entity entity..." Line: 828 Column: - 195
"...tem-2227" class="entity entity..." Line: 869 Column: - 106
"...ane-355" class="panel-pane pa..." Line: 877 Column: - 84
"...ane-356" class="panel-pane pa..." Line: 897 Column: - 96
"...ane-354" class="panel-pane pa..." Line: 910 Column: - 92
"...ane-357" class="panel-pane pa..."

Warnings

The “banner” role is unnecessary for element “header”.

Line: 110 Column: 7 - 46
"...e"> <header class="l-header " role="banner"> ..."

The “contentinfo” role is unnecessary for element “footer”.

Line: 864 Column: 5 - 48
"...div> <footer class="l-footer" role="contentinfo"> ..."

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si.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.


si.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.