psu.edu Website Information

Daily Unique Visits: 406,364

Daily Page Views: 3,250,912

Income Per Day: $3,251

Estimated Value: $3,511,080

This website is located in United States and is using following IP address 128.118.146.135. See the complete list of popular websites hosted in United States.

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

Website psu.edu is using the following name servers:

ns1.psu.edu
psu-ns.acns.msu.edu
ns2.psu.edu

and is probably hosted by PENN-STATE - The Pennsylvania State University, US. See the full list of other websites hosted by PENN-STATE - The Pennsylvania State University, US.

The highest website psu.edu position in Alexa rank database was 679 and the lowest rank position was 5197. Current position of psu.edu in Alexa rank database is 3750.

Desktop speed score of psu.edu (64/100) is better than the results of 41.34% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of psu.edu (90/100) is better than the results of 31.63% of other sites and means that the page is mobile-friendly.

Mobile speed score of psu.edu (52/100) is better than the results of 37.6% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

psu.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.

psu.edu whois

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This Registry database contains ONLY .EDU domains.
The data in the EDUCAUSE Whois database is provided
by EDUCAUSE for information purposes in order to
assist in the process of obtaining information about
or related to .edu domain registration records.

The EDUCAUSE Whois database is authoritative for the
.EDU domain.

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
will not be used to allow, enable, or otherwise support
the transmission of unsolicited commercial advertising or
solicitations via e-mail. The use of electronic processes to
harvest information from this server is generally prohibited
except as reasonably necessary to register or modify .edu
domain names.

-------------------------------------------------------------

Domain Name: PSU.EDU

Registrant:
Pennsylvania State University
114 USB2
University Park, PA 16802-1013
US

Administrative Contact:
Domain Admin
The Pennsylvania State University
USB2
University Park, PA 16802
US
+1.8148654700
dns-admin@psu.edu

Technical Contact:

The Pennsylvania State University
USB 2
University Park, PA 16802-1013
US
+1.8148654700
dns-tech@psu.edu

Name Servers:
NS1.PSU.EDU
PSU-NS.ACNS.MSU.EDU
NS2.PSU.EDU

Domain record activated: 14-Jul-1986
Domain record last updated: 30-Mar-2021
Domain expires: 31-Jul-2021

psu.edu server information

Servers Location

psu.edu desktop page speed rank

Last tested: 2017-05-17

Desktop Speed Bad

64/100

psu.edu Desktop Speed Test Quick Summary

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priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 5Enable compression

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priority - 3Leverage browser caching

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priority - 1Minify JavaScript

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psu.edu Desktop Resource Breakdown

Total Resources	94
Number of Hosts	24
Static Resources	69
JavaScript Resources	27
CSS Resources	13

psu.edu mobile page speed rank

Last tested: 2017-05-15

Mobile Speed Bad

52/100

psu.edu Mobile Speed Test Quick Summary

priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 43Optimize images

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priority - 5Enable compression

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priority - 4Leverage browser caching

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priority - 1Minify JavaScript

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psu.edu Mobile Resource Breakdown

Total Resources	85
Number of Hosts	22
Static Resources	63
JavaScript Resources	25
CSS Resources	14

psu.edu mobile page usability

Last tested: 2017-05-15

Mobile Usability Good

90/100

psu.edu Mobile Usability Test Quick Summary

priority - 9Size 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 <html class="js">Penn State-A P…Top</html> and 10 others are close to other tap targets.
The tap target <html class="js">Penn State-A P…Top</html> and 12 others are close to other tap targets.

The tap target <div id="skip-link">Skip to main content</div> and 1 others are close to other tap targets.

The tap target <header id="section-header" class="section section-header">President Find…ics Healthcare</header> and 4 others are close to other tap targets.

The tap target <div id="zone-user-wrapper" class="zone-wrapper z…apper clearfix">President Find…Departments</div> is close to 1 other tap targets.

The tap target <div id="zone-user" class="zone zone-user…x container-12">President Find…Departments</div> and 20 others are close to other tap targets.

The tap target <div id="region-user-first" class="grid-9 prefix-…ion-user-first">President Find…Departments</div> is close to 1 other tap targets.

The tap target <ul class="menu">President Find…y now Give now</ul> and 1 others are close to other tap targets.

The tap target <a href="http://www.psu.edu/admission">Apply now</a> and 1 others are close to other tap targets.

The tap target <div id="region-branding" class="grid-4 region region-branding">Penn State University</div> and 5 others are close to other tap targets.

The tap target <h2 class="block-title">Information for:</h2> is close to 11 other tap targets.

The tap target <li>1</li> and 4 others are close to other tap targets.

The tap target <a class="flex-active">1</a> is close to 4 other tap targets.

The tap target <a>2</a> and 3 others are close to other tap targets.

The tap target <div class="bar clearfix">Penn State New…Select a Topic</div> is close to 3 other tap targets.

The tap target <div class="bar-link left">Penn State New…tate News Feed</div> and 1 others are close to other tap targets.

The tap target <a href="http://news.psu.edu">Penn State News</a> is close to 3 other tap targets.

The tap target <div class="view view-topi…b5922de06272d7">Select a Topic…Select a Topic</div> and 4 others are close to other tap targets.

The tap target <div class="form-item form…form-item-jump">Select a Topic…Select a Topic</div> is close to 7 other tap targets.

The tap target <div class="form-item form…form-item-jump">Select a Topic…Select a Topic</div> and 1 others are close to other tap targets.

The tap target <span class="customSelect c…mSelectChanged">Select a Topic</span> is close to 4 other tap targets.

The tap target <span class="customSelectInner">Select a Topic</span> is close to 4 other tap targets.

The tap target <input id="edit-go" type="submit" name="op" class="ctools-jump-me…menu-processed"> is close to 4 other tap targets.

The tap target <div class="field-items">AcademicsU.S.…t on May 10...</div> and 7 others are close to other tap targets.

The tap target <h2 class="node-title">U.S. Army vete…onal attention</h2> is close to 6 other tap targets.

The tap target <a href="http://news.ps…graduate-earns">U.S. Army vete…onal attention</a> is close to 6 other tap targets.

The tap target <div class="field-items">Commencement m…Center (MAC).</div> and 9 others are close to other tap targets.

The tap target <h2 class="node-title">Commencement m…are one team'</h2> and 1 others are close to other tap targets.

The tap target <a href="http://news.ps…-team%E2%80%99">Commencement m…are one team'</a> and 1 others are close to other tap targets.

The tap target <h2 class="node-title">Penn State gra…s Pennsylvania</h2> and 1 others are close to other tap targets.
The tap target <div class="field-items">Penn State lea…rchGo to video</div> and 5 others are close to other tap targets.
The tap target <h2 class="node-title">Penn State lea…tment research</h2> is close to 11 other tap targets.
The tap target <a href="javascript:void(0)">Penn State lea…tment research</a> is close to 11 other tap targets.
The tap target <div class="facebook-page-title">pennstate</div> is close to 2 other tap targets.
The tap target <a href="http://www.fac….com/pennstate">pennstate</a> is close to 2 other tap targets.
The tap target <div class="tweet-author-wrapper clearfix">penn_state…ow @penn_state</div> and 3 others are close to other tap targets.
The tap target <div class="tweet-author">penn_state</div> and 1 others are close to other tap targets.
The tap target <a href="https://twitter.com/penn_state">penn_state</a> and 1 others are close to other tap targets.
The tap target <a href="http://twitter…q=%23PennState">#PennState</a> and 3 others are close to other tap targets.
The tap target <div id="region-footer-first" class="grid-4 region…n-footer-first">Penn State…t a college...</div> and 4 others are close to other tap targets.
The tap target <h2 class="block-title">Penn State</h2> is close to 10 other tap targets.
The tap target <li class="first progress">Progress</li> is close to 1 other tap targets.
The tap target <li class="first progress">Progress</li> and 2 others are close to other tap targets.
The tap target <li class="hotlines">Hotlines</li> and 1 others are close to other tap targets.
The tap target <a href="http://psu.edu/ur/hotline.html">Hotlines</a> is close to 1 other tap targets.
The tap target <li class="gold apply">Apply Now</li> is close to 1 other tap targets.
The tap target <li class="gold apply">Apply Now</li> and 2 others are close to other tap targets.
The tap target <a href="http://giveto.psu.edu">Give Now</a> is close to 1 other tap targets.
The tap target <div id="block-psu-coll…pus-jump-block" class="block block-ps…-without-title">All campuses…t a college...</div> and 16 others are close to other tap targets.
The tap target <div class="jump-container campus clearfix">All campuses…ct a campus...</div> is close to 8 other tap targets.
The tap target <div class="view view-coll…f1f949162fb458">Select a campu…ct a campus...</div> and 5 others are close to other tap targets.
The tap target <label for="edit-jump--2">Select a campus</label> and 1 others are close to other tap targets.
The tap target <select id="edit-jump--2" name="jump" class="ctools-jump-me…ct form-select">Select a campu…York</select> is close to 8 other tap targets.
The tap target <span class="customSelect c…mSelectChanged">Select a campus...</span> and 1 others are close to other tap targets.
The tap target <span class="customSelectInner">Select a campus...</span> and 1 others are close to other tap targets.
The tap target <li class="first leaf">Facebook</li> and 3 others are close to other tap targets.
The tap target <a href="http://www.fac….com/pennstate" class="facebook">Facebook</a> is close to 5 other tap targets.
The tap target <a href="http://twitter.com/penn_state" class="twitter">Twitter</a> is close to 5 other tap targets.
The tap target <a href="http://www.you….com/pennstate" class="youtube">YouTube</a> is close to 5 other tap targets.
The tap target <a href="http://www.fli…/pennstatelive" class="flickr">Flickr</a> is close to 5 other tap targets.
The tap target <div class="footer-left">Employment Map…814-865-4700</div> and 3 others are close to other tap targets.
The tap target <li class="first leaf">Employment</li> and 1 others are close to other tap targets.
The tap target <li class="first leaf">Employment</li> and 13 others are close to other tap targets.
The tap target <a href="http://psu.jobs/">Employment</a> and 8 others are close to other tap targets.
The tap target <li class="leaf">Maps</li> and 4 others are close to other tap targets.
The tap target <li class="last leaf">Search</li> and 1 others are close to other tap targets.
The tap target <p class="phone-number">814-865-4700</p> and 1 others are close to other tap targets.
The tap target <div class="footer-right">Privacy Non-di…versity © 2015</div> is close to 1 other tap targets.

psu.edu HTML validation

Errors

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

Line: 1 Column: - 2
"...<?xml version="1..."

Legacy doctype. Expected “<!DOCTYPE html>”.

Line: 2 Column: 39 - 103
"...="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd"> <html..."

Attribute “xmlns:og” not allowed here.

Line: 13 Column: 104 - 36
"...fa-1.dtd"> <html xml:lang="en" dir="ltr" xmlns="http://www.w3.org/1999/xhtml" version="HTML+RDFa 1.1" xmlns:og="http://ogp.me/ns#" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" xmlns:schema="http://schema.org/"> <head..."

Attribute “xmlns:content” not allowed here.

Attribute “xmlns:dc” not allowed here.

Attribute “xmlns:foaf” not allowed here.

Attribute “xmlns:rdfs” not allowed here.

Attribute “xmlns:sioc” not allowed here.

Attribute “xmlns:sioct” not allowed here.

Attribute “xmlns:skos” not allowed here.

Attribute “xmlns:xsd” not allowed here.

Attribute “xmlns:schema” not allowed here.

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

The “version” attribute on the “html” element is obsolete. You can safely omit it.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Line: 14 Column: 37 - 51
"...ema.org/"> <head profile="http://www.w3.org/1999/xhtml/vocab"> ..."

Bad start tag in “iframe” in “head”.

Line: 22 Column: 11 - 60
"...<noscript><iframe src="//www.googletagmanager.com/ns.html?id=GTM-P3SBL5" height="0" width="0" style="display:none;visibility:hidden"></ifra..."

Element “head” is missing a required instance of child element “title”.

Line: 22 Column: 11 - 60
"...<noscript><iframe src="//www.googletagmanager.com/ns.html?id=GTM-P3SBL5" height="0" width="0" style="display:none;visibility:hidden"></ifra..."

Stray end tag “noscript”.

Line: 22 Column: 70 - 80
"...></iframe></noscript> <scri..."

Attribute “http-equiv” not allowed on element “meta” at this point.

Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.

Line: 31 Column: 3 - 71
"...ger --> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta..." Line: 32 Column: 1 - 64
"...utf-8" /> <meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible" /> <link..." Line: 34 Column: 1 - 122
"...posed" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" /> <link..." Line: 37 Column: 1 - 73
"...-news" /> <meta name="p:domain_verify" content="e7434b31046ae48ae613cf53ddd0c5fb"/><meta ..." Line: 37 Column: 74 - 166
"...dd0c5fb"/><meta name="google-site-verification" content="6d6NGwbHXF5GYJdjFAgIEf489whJQPA38xYeyed-8g0"/><meta ..." Line: 37 Column: 167 - 379
"...yed-8g0"/><meta name="description" content="Penn State is a major, public, research-I university serving Pennsylvania and the global community. Learn more about our undergraduate, graduate, and doctoral degree programs." /> <meta..." Line: 38 Column: 1 - 50
"...rams." /> <meta name="abstract" content="Penn State Home" /> <meta..." Line: 39 Column: 1 - 46
"... Home" /> <meta name="robots" content="noodp, noydir" /> <meta..." Line: 40 Column: 1 - 64
"...oydir" /> <meta name="generator" content="Drupal 7 (http://drupal.org)" /> <link..."

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 32 Column: 1 - 64
"...utf-8" /> <meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible" /> <link..."

A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “modulepreload”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.

Line: 33 Column: 1 - 111
"...tible" /> <link href="profiles/psu_profile/themes/psu_main/144.png" sizes="144x144" rel="apple-touch-icon-precomposed" /> <meta..." Line: 35 Column: 1 - 136
"...le=no" /> <link rel="shortcut icon" href="https://www.psu.edu/profiles/psu_profile/themes/psu_main/favicon.ico" type="image/vnd.microsoft.icon" /> <link..." Line: 36 Column: 1 - 109
"....icon" /> <link rel="alternate" type="application/rss+xml" title="All News" href="https://news.psu.edu/rss/top-news" /> <meta..." Line: 41 Column: 1 - 72
"....org)" /> <link rel="canonical" href="https://www.psu.edu/content/psu-homepage" /> <link..." Line: 42 Column: 1 - 61
"...epage" /> <link rel="shortlink" href="https://www.psu.edu/node/4998" /> <meta..."

Attribute “name” not allowed on element “meta” at this point.

Line: 34 Column: 1 - 122
"...posed" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" /> <link..." Line: 37 Column: 1 - 73
"...-news" /> <meta name="p:domain_verify" content="e7434b31046ae48ae613cf53ddd0c5fb"/><meta ..." Line: 37 Column: 74 - 166
"...dd0c5fb"/><meta name="google-site-verification" content="6d6NGwbHXF5GYJdjFAgIEf489whJQPA38xYeyed-8g0"/><meta ..." Line: 37 Column: 167 - 379
"...yed-8g0"/><meta name="description" content="Penn State is a major, public, research-I university serving Pennsylvania and the global community. Learn more about our undergraduate, graduate, and doctoral degree programs." /> <meta..." Line: 38 Column: 1 - 50
"...rams." /> <meta name="abstract" content="Penn State Home" /> <meta..." Line: 39 Column: 1 - 46
"... Home" /> <meta name="robots" content="noodp, noydir" /> <meta..." Line: 40 Column: 1 - 64
"...oydir" /> <meta name="generator" content="Drupal 7 (http://drupal.org)" /> <link..."

Element “title” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)

Line: 46 Column: 3 - 9
"...ity" /> <title>Penn S..."

Stray end tag “head”.

Line: 131 Column: 1 - 7
"...endif]--> </head> <body..."

Start tag “body” seen but an element of the same type was already open.

Line: 132 Column: 1 - 104
"...> </head> <body class="html front not-logged-in page-node page-node- page-node-4998 node-type-homepage main-site"> <di..."

Cannot recover after last error. Any further errors will be ignored.

Line: 132 Column: 1 - 104
"...> </head> <body class="html front not-logged-in page-node page-node- page-node-4998 node-type-homepage main-site"> <di..."

Warnings

Attribute with the local name “xmlns:og” is not serializable as XML 1.0.

Attribute with the local name “xmlns:content” is not serializable as XML 1.0.

Attribute with the local name “xmlns:dc” is not serializable as XML 1.0.

Attribute with the local name “xmlns:foaf” is not serializable as XML 1.0.

Attribute with the local name “xmlns:rdfs” is not serializable as XML 1.0.

Attribute with the local name “xmlns:sioc” is not serializable as XML 1.0.

Attribute with the local name “xmlns:sioct” is not serializable as XML 1.0.

Attribute with the local name “xmlns:skos” is not serializable as XML 1.0.

Attribute with the local name “xmlns:xsd” is not serializable as XML 1.0.

Attribute with the local name “xmlns:schema” is not serializable as XML 1.0.

Consider avoiding viewport values that prevent users from resizing documents.

Line: 34 Column: 1 - 122
"...posed" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" /> <link..."

The “type” attribute is unnecessary for JavaScript resources.

Line: 101 Column: 3 - 121
"...dif]--> <script type="text/javascript" src="https://www.psu.edu/sites/all/modules/contrib/respondjs/lib/respond.min.js?q98k5h"></scri..." Line: 102 Column: 1 - 130
"...</script> <script type="text/javascript" src="https://www.psu.edu/sites/default/files/js/js_0RyHJ63yYLuaWsodCPCgSD8dcTIA0dqcDf8-7c2XdBw.js"></scri..." Line: 103 Column: 1 - 130
"...</script> <script type="text/javascript" src="https://www.psu.edu/sites/default/files/js/js_aAlGj0C4DI7o_m9IO_M_DJP1CK2P4W9TmeC9iZ9SSKQ.js"></scri..." Line: 104 Column: 1 - 130
"...</script> <script type="text/javascript" src="https://www.psu.edu/sites/default/files/js/js_aG83gL1eF8FGcW257r1BfTKfn__dBD7kPt-7IteBJLM.js"></scri..." Line: 105 Column: 1 - 31
"...</script> <script type="text/javascript"> <!--/..." Line: 110 Column: 1 - 31
"...</script> <script type="text/javascript"> <!--/..." Line: 115 Column: 1 - 71
"...</script> <script type="text/javascript" src="//platform.twitter.com/widgets.js"></scri..." Line: 116 Column: 1 - 130
"...</script> <script type="text/javascript" src="https://www.psu.edu/sites/default/files/js/js_KUw6WT8uyBjp6rR6jDEvyrr1vivzbjglAG-jtroBYPM.js"></scri..." Line: 117 Column: 1 - 31
"...</script> <script type="text/javascript"> <!--/..." Line: 122 Column: 1 - 130
"...</script> <script type="text/javascript" src="https://www.psu.edu/sites/default/files/js/js_rOAuFufvnTGb6J9QldNSLQLhMh71GZRMdDf8myFV8Ms.js"></scri..." Line: 123 Column: 1 - 130
"...</script> <script type="text/javascript" src="https://www.psu.edu/sites/default/files/js/js_RZuokIutO6hn_ncFVgfO-CAYKfp85wjJNBnxtcdLvy8.js"></scri..." Line: 124 Column: 1 - 130
"...</script> <script type="text/javascript" src="https://www.psu.edu/sites/default/files/js/js_pO7-ZOgVmZqXu1DMIblQ1_yeW6m6ETQYL1UGGpwsW90.js"></scri..." Line: 125 Column: 1 - 31
"...</script> <script type="text/javascript"> <!--/..."

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psu.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.

psu.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.

PSU.EDU Penn State-A Public Research University Serving Pennsylvania and the Global Community

psu.edu Website Information

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psu.edu Desktop Speed Test Quick Summary

priority - 37Optimize images

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

Optimize the following images to reduce their size by 357.8KiB (48% reduction).

priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

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priority - 5Enable 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 51.2KiB (73% reduction).

priority - 3Leverage 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:

priority - 1Minify 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 10.1KiB (21% reduction).

psu.edu Desktop Resource Breakdown

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psu.edu Mobile Speed Test Quick Summary

priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 43Optimize images

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

Optimize the following images to reduce their size by 420.4KiB (44% reduction).

priority - 5Enable 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 50.1KiB (74% reduction).

priority - 4Leverage 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:

priority - 1Minify 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 10.1KiB (21% reduction).

psu.edu Mobile Resource Breakdown

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psu.edu Mobile Usability Test Quick Summary

priority - 9Size tap targets appropriately

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The following tap targets are close to other nearby tap targets and may need additional spacing around them.

psu.edu HTML validation

Errors

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

Legacy doctype. Expected “<!DOCTYPE html>”.

Attribute “xmlns:og” not allowed here.

Attribute “xmlns:content” not allowed here.

Attribute “xmlns:dc” not allowed here.

Attribute “xmlns:foaf” not allowed here.

Attribute “xmlns:rdfs” not allowed here.

Attribute “xmlns:sioc” not allowed here.

Attribute “xmlns:sioct” not allowed here.

Attribute “xmlns:skos” not allowed here.

Attribute “xmlns:xsd” not allowed here.

Attribute “xmlns:schema” not allowed here.

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

The “version” attribute on the “html” element is obsolete. You can safely omit it.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Bad start tag in “iframe” in “head”.

Element “head” is missing a required instance of child element “title”.

Stray end tag “noscript”.

Attribute “http-equiv” not allowed on element “meta” at this point.

Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Attribute “name” not allowed on element “meta” at this point.

Element “title” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)

Stray end tag “head”.

Start tag “body” seen but an element of the same type was already open.

Cannot recover after last error. Any further errors will be ignored.

Warnings

Attribute with the local name “xmlns:og” is not serializable as XML 1.0.