PIAZZA.COM Piazza • Ask. Answer. Explore. Whenever.

piazza.com Website Information

Daily Unique Visits: 380,681

Daily Page Views: 3,045,448

Income Per Day: $3,045

Estimated Value: $3,288,600

This website is located in United States and is using following IP address 54.227.152.143. See the complete list of popular websites hosted in United States.

piazza.com is registered under .COM top-level domain. Please check other sites in .COM zone.

Website piazza.com is using the following name servers:

  • ns-1269.awsdns-30.org
  • ns-879.awsdns-45.net
  • ns-449.awsdns-56.com
  • ns-1552.awsdns-02.co.uk

and is probably hosted by AMAZON-AES - Amazon.com, Inc., US. See the full list of other websites hosted by AMAZON-AES - Amazon.com, Inc., US.

The highest website piazza.com position in Alexa rank database was 1503 and the lowest rank position was 32480. Current position of piazza.com in Alexa rank database is 4003.

Desktop speed score of piazza.com (85/100) is better than the results of 83.24% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of piazza.com (96/100) is better than the results of 60.6% of other sites and means that the page is mobile-friendly.

Mobile speed score of piazza.com (72/100) is better than the results of 81.66% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Advertisement

piazza.com 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.


piazza.com whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


Domain Name: PIAZZA.COM
Registry Domain ID: 80910016_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Update Date: 2012-12-05T08:13:17Z
Creation Date: 2001-12-09T19:02:16Z
Registrar Registration Expiration Date: 2021-12-09T19:02:16Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited http://www.icann.org/epp#clientUpdateProhibited
Domain Status: clientRenewProhibited http://www.icann.org/epp#clientRenewProhibited
Domain Status: clientDeleteProhibited http://www.icann.org/epp#clientDeleteProhibited
Registry Registrant ID:
Registrant Name: Domain Administrator
Registrant Organization: Piazza Technologies, Inc.
Registrant Street: 101 University Ave.
Registrant Street: Suite 300
Registrant City: Palo Alto
Registrant State/Province: California
Registrant Postal Code: 94301
Registrant Country: United States
Registrant Phone: +1.8008184124
Registrant Phone Ext:
Registrant Fax: +1.8008184124
Registrant Fax Ext:
Registrant Email: domain@piazzza.com
Registry Admin ID:
Admin Name: Domain Administrator
Admin Organization: Piazza Technologies, Inc.
Admin Street: 101 University Ave.
Admin Street: Suite 300
Admin City: Palo Alto
Admin State/Province: California
Admin Postal Code: 94301
Admin Country: United States
Admin Phone: +1.8008184124
Admin Phone Ext:
Admin Fax: +1.8008184124
Admin Fax Ext:
Admin Email: domain@piazzza.com
Registry Tech ID:
Tech Name: Domain Administrator
Tech Organization: Piazza Technologies, Inc.
Tech Street: 101 University Ave.
Tech Street: Suite 300
Tech City: Palo Alto
Tech State/Province: California
Tech Postal Code: 94301
Tech Country: United States
Tech Phone: +1.8008184124
Tech Phone Ext:
Tech Fax: +1.8008184124
Tech Fax Ext:
Tech Email: domain@piazzza.com
Name Server: NS-449.AWSDNS-56.COM
Name Server: NS-1269.AWSDNS-30.ORG
Name Server: NS-1552.AWSDNS-02.CO.UK
Name Server: NS-879.AWSDNS-45.NET
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2015-05-20T02:00:00Z

piazza.com server information

Servers Location

piazza.com desktop page speed rank

Last tested: 2016-06-13


Desktop Speed Good
85/100

piazza.com Desktop Speed Test Quick Summary


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

Your page has 9 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://piazza.com/javascripts/jquery-1.7.1.min.js?v=1377
https://piazza.com/javascripts/respond.min.js?v=1377
https://piazza.com/javascripts/bootstrap3.min.js?v=1377
https://piazza.com/javascripts/jquery.blockUI.js?v=1377
https://piazza.com/javascripts/jquery.fancybox-1.3.4.pack.js?v=1377
https://piazza.com/modules/event_manager.js?v=1377
https://piazza.com/modules/helpers.js?v=1377
https://piazza.com/modules/ajax.js?v=1377
https://piazza.com/js/splash/splash.js?v=1377

Optimize CSS Delivery of the following:

https://piazza.com/css/splash/smart-app-banner.min.css
https://piazza.com/css/shared/lib/bootstrap3/css/bootstrap.min.css?v=1377
https://piazza.com/css/plugins/fancybox-1.3.4.css?v=1377
https://piazza.com/css/plugins/fancybox-1.3.4.css?v=1377
https://piazza.com/css/splash/splash-responsive2.css?v=1377

priority - 4 Optimize images

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

Optimize the following images to reduce their size by 43KiB (30% reduction).

Losslessly compressing https://piazza.com/images/splash2/cmu_logo.png could save 18.7KiB (22% reduction).
Losslessly compressing https://piazza.com/images/splash/modules/preview/founder-video-preview.jpg could save 18.4KiB (44% reduction).
Losslessly compressing https://piazza.com/images/splash2/subject_icons.png could save 4.8KiB (40% reduction).
Losslessly compressing https://piazza.com/images/splash2/topbar/piazza_logo_blue.png could save 1KiB (42% reduction).

priority - 2 Leverage 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://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-54Q84K (16.3 minutes)
https://connect.facebook.net/en_US/fbds.js (20 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 1 Minify 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 7.8KiB (28% reduction).

Minifying https://piazza.com/javascripts/jquery.blockUI.js?v=1377 could save 2.4KiB (44% reduction) after compression.
Minifying https://piazza.com/modules/helpers.js?v=1377 could save 2KiB (27% reduction) after compression.
Minifying https://piazza.com/modules/ajax.js?v=1377 could save 1.4KiB (28% reduction) after compression.
Minifying https://piazza.com/javascripts/jquery.fancybox-1.3.4.pack.js?v=1377 could save 1.4KiB (19% reduction) after compression.
Minifying https://piazza.com/js/splash/splash.js?v=1377 could save 738B (26% reduction) after compression.

priority - 0 Minify 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 1.9KiB (18% reduction).

Minifying https://piazza.com/ could save 1.9KiB (18% reduction) after compression.

piazza.com Desktop Resource Breakdown

Total Resources40
Number of Hosts11
Static Resources31
JavaScript Resources17
CSS Resources5

piazza.com mobile page speed rank

Last tested: 2016-06-13


Mobile Speed Medium
72/100

piazza.com Mobile Speed Test Quick Summary


priority - 32 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://piazza.com/javascripts/jquery-1.7.1.min.js?v=1377
https://piazza.com/javascripts/respond.min.js?v=1377
https://piazza.com/javascripts/bootstrap3.min.js?v=1377
https://piazza.com/javascripts/jquery.blockUI.js?v=1377
https://piazza.com/javascripts/jquery.fancybox-1.3.4.pack.js?v=1377
https://piazza.com/modules/event_manager.js?v=1377
https://piazza.com/modules/helpers.js?v=1377
https://piazza.com/modules/ajax.js?v=1377
https://piazza.com/js/splash/splash.js?v=1377

Optimize CSS Delivery of the following:

https://piazza.com/css/splash/smart-app-banner.min.css
https://piazza.com/css/shared/lib/bootstrap3/css/bootstrap.min.css?v=1377
https://piazza.com/css/plugins/fancybox-1.3.4.css?v=1377
https://piazza.com/css/plugins/fancybox-1.3.4.css?v=1377
https://piazza.com/css/splash/splash-responsive2.css?v=1377

priority - 3 Leverage 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://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-54Q84K (16.3 minutes)
https://connect.facebook.net/en_US/fbds.js (20 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 3 Optimize images

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

Optimize the following images to reduce their size by 24.6KiB (25% reduction).

Losslessly compressing https://piazza.com/images/splash2/cmu_logo.png could save 18.7KiB (22% reduction).
Losslessly compressing https://piazza.com/images/splash2/subject_icons.png could save 4.8KiB (40% reduction).
Losslessly compressing https://piazza.com/images/splash2/topbar/piazza_logo_blue.png could save 1KiB (42% reduction).

priority - 1 Minify 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 7.8KiB (28% reduction).

Minifying https://piazza.com/javascripts/jquery.blockUI.js?v=1377 could save 2.4KiB (44% reduction) after compression.
Minifying https://piazza.com/modules/helpers.js?v=1377 could save 2KiB (27% reduction) after compression.
Minifying https://piazza.com/modules/ajax.js?v=1377 could save 1.4KiB (28% reduction) after compression.
Minifying https://piazza.com/javascripts/jquery.fancybox-1.3.4.pack.js?v=1377 could save 1.4KiB (19% reduction) after compression.
Minifying https://piazza.com/js/splash/splash.js?v=1377 could save 738B (26% reduction) after compression.

priority - 0 Minify 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 999B (11% reduction).

Minifying https://piazza.com/ could save 999B (11% reduction) after compression.

piazza.com Mobile Resource Breakdown

Total Resources38
Number of Hosts12
Static Resources28
JavaScript Resources17
CSS Resources5

piazza.com mobile page usability

Last tested: 2016-06-13


Mobile Usability Good
96/100

piazza.com Mobile Usability Test Quick Summary


priority - 3 Size 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="/about/story" class="log_click">Our Story</a> and 13 others are close to other tap targets.
The tap target <a href="http://twitter.com/piazza" class="log_click twitter-link"> is close to 1 other tap targets.
The tap target <a href="http://www.fac…ok.com/piazzza" class="log_click facebook-link"> is close to 1 other tap targets.

piazza.com Mobile Resource Breakdown

Total Resources38
Number of Hosts12
Static Resources28
JavaScript Resources17
CSS Resources5

piazza.com HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 121
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."

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: 24 Column: 3 - 68
"...F-8" /> <meta http-equiv="X-UA-Compatible" content="IE=9; IE=8; IE=EDGE"/> <!..."

Bad start tag in “img” in “head”.

Line: 93 Column: 15 - 176
"...<noscript><img height="1" width="1" alt="" style="display:none" src="https://www.facebook.com/tr?ev=6024198745252&amp;cd[value]=0.00&amp;cd[currency]=USD&amp;noscript=1" /></nosc..."

Bad value “https://www.facebook.com/tr?ev=6024198745252&cd[value]=0.00&cd[currency]=USD&noscript=1” for attribute “src” on element “img”: Illegal character in query: “[” is not allowed.

Line: 93 Column: 15 - 176
"...<noscript><img height="1" width="1" alt="" style="display:none" src="https://www.facebook.com/tr?ev=6024198745252&amp;cd[value]=0.00&amp;cd[currency]=USD&amp;noscript=1" /></nosc..."

Stray end tag “noscript”.

Line: 93 Column: 177 - 187
"...ript=1" /></noscript> </h..."

Stray end tag “head”.

Line: 94 Column: 3 - 9
"...script> </head> <b..."

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

Line: 96 Column: 3 - 50
".../head> <body class="qa_homepage_container new_splash "> ..."

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

Line: 96 Column: 3 - 50
".../head> <body class="qa_homepage_container new_splash "> ..."

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Line: 20 Column: 3 - 110
"...th. --> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" /> <!..."

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piazza.com 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.


piazza.com 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.