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USENIX.ORG USENIX | The Advanced Computing Systems Association

usenix.org Website Information

Daily Unique Visits: 470,329

Daily Page Views: 3,762,632

Income Per Day: $3,763

Estimated Value: $4,064,040

This website is located in United States and is using following IP address 23.185.0.4. See the complete list of popular websites hosted in United States.

usenix.org is registered under .ORG top-level domain. Please check other sites in .ORG zone.

Website usenix.org is using the following name servers:

  • dns3.easydns.org
  • dns1.easydns.com
  • dns2.easydns.net

and is probably hosted by FASTLY - Fastly, US. See the full list of other websites hosted by FASTLY - Fastly, US.

The highest website usenix.org position in Alexa rank database was 3163 and the lowest rank position was 3730. Current position of usenix.org in Alexa rank database is 3240.

Desktop speed score of usenix.org (72/100) is better than the results of 54.39% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of usenix.org (65/100) is better than the results of 13.11% of other sites and means that the page is not mobile-friendly.

Mobile speed score of usenix.org (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.

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usenix.org 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.

usenix.org 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: usenix.org
Registry Domain ID: 23faef566a40462cb81433bf13f9eaf9-LROR
Registrar WHOIS Server: http://whois.easydns.com
Registrar URL: http://www.easydns.com
Updated Date: 2024-04-21T17:20:03Z
Creation Date: 1987-07-14T04:00:00Z
Registry Expiry Date: 2025-07-13T04:00:00Z
Registrar: easyDNS Technologies Inc.
Registrar IANA ID: 469
Registrar Abuse Contact Email: abuse@easydns.com
Registrar Abuse Contact Phone: +1.4165358672
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: USENIX Association
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: CA
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: dns1.easydns.com
Name Server: dns2.easydns.net
Name Server: dns3.easydns.ca
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-13T06:55:43Z

usenix.org server information

Servers Location

usenix.org desktop page speed rank

Last tested: 2019-12-09

Desktop Speed Medium
72/100

usenix.org Desktop Speed Test Quick Summary


priority - 14Avoid landing page redirects

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http://usenix.org/
https://usenix.org/
http://www.usenix.org/home
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priority - 10Optimize images

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

Your page has 5 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.

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Optimize CSS Delivery of the following:

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https://www.usenix.org/css/ie.css

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:

https://engine.adzerk.net/ados.js (expiration not specified)
https://www.usenix.org/sites/default/files/css/css…eRkm5NMpJWZG3hSuFU.css (2 minutes)
https://cdn.syndication.twimg.com/timeline/profile…800&with_replies=false (5 minutes)
https://syndication.twitter.com/settings (10 minutes)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://js-agent.newrelic.com/nr-1153.min.js (2 hours)

priority - 3Minify JavaScript

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

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usenix.org Desktop Resource Breakdown

Total Resources127
Number of Hosts18
Static Resources105
JavaScript Resources22
CSS Resources8

usenix.org mobile page speed rank

Last tested: 2019-12-14

Mobile Speed Bad
52/100

usenix.org Mobile Speed Test Quick Summary


priority - 51Avoid landing page redirects

Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://usenix.org/
https://usenix.org/
http://www.usenix.org/home
https://www.usenix.org/home

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

Your page has 5 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.usenix.org/sites/default/files/js/js_d…a6wcYkaWkQCEZ8Wpd8c.js
https://www.usenix.org/sites/default/files/js/js_h…d1TZPr2-2-cXqq6X1EY.js
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Optimize CSS Delivery of the following:

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https://www.usenix.org/css/ie.css

priority - 11Optimize images

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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:

https://engine.adzerk.net/ados.js (expiration not specified)
https://www.usenix.org/sites/default/files/css/css…eRkm5NMpJWZG3hSuFU.css (2 minutes)
https://cdn.syndication.twimg.com/timeline/profile…800&with_replies=false (5 minutes)
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https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://js-agent.newrelic.com/nr-1153.min.js (2 hours)

priority - 3Minify 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 29.1KiB (29% reduction).

Minifying https://www.usenix.org/sites/default/files/js/js_1…j7GR_MIL8wNVFSX1GjQ.js could save 12.1KiB (48% reduction) after compression.
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Minifying https://www.usenix.org/sites/default/files/js/js_B…xiumZmAoP08wXIegdFk.js could save 193B (34% reduction) after compression.

usenix.org Mobile Resource Breakdown

Total Resources132
Number of Hosts20
Static Resources108
JavaScript Resources21
CSS Resources9

usenix.org mobile page usability

Last tested: 2019-12-14

Mobile Usability Medium
65/100

usenix.org Mobile Usability Test Quick Summary


priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

This site uses cookies renders only 6 pixels tall (16 CSS pixels).

If you use thi…e information. renders only 5 pixels tall (12 CSS pixels).

View Cookie Statement renders only 5 pixels tall (13 CSS pixels).

Got it renders only 5 pixels tall (13 CSS pixels).

Skip to main content renders only 5 pixels tall (14 CSS pixels).

Create Account and 1 others render only 5 pixels tall (12 CSS pixels).

Search form renders only 7 pixels tall (19 CSS pixels).

Main menu renders only 7 pixels tall (19 CSS pixels).

Home renders only 5 pixels tall (13 CSS pixels).

Membership & Services and 5 others render only 5 pixels tall (13 CSS pixels).

Register Now for Enigma 2020! renders only 7 pixels tall (19 CSS pixels).

Registration and 3 others render only 5 pixels tall (14 CSS pixels).

. Join us in S…onference rate and 5 others render only 5 pixels tall (14 CSS pixels).

Tuesday, January 7 renders only 5 pixels tall (14 CSS pixels).

More renders only 5 pixels tall (12 CSS pixels).

Website Maintenance Alert renders only 6 pixels tall (16 CSS pixels).

Due to schedul…inconvenience. and 8 others render only 5 pixels tall (14 CSS pixels).

register for Enigma 2020 renders only 5 pixels tall (14 CSS pixels).

Conferences renders only 7 pixels tall (19 CSS pixels).

Upcoming renders only 3 pixels tall (9 CSS pixels).

Recent and 1 others render only 3 pixels tall (9 CSS pixels).

USENIX Supporter and 4 others render only 5 pixels tall (14 CSS pixels).

Proceedings of…y and Security and 11 others render only 5 pixels tall (14 CSS pixels).

San Francisco, CA and 18 others render only 5 pixels tall (14 CSS pixels).

| and 1 others render only 5 pixels tall (14 CSS pixels).

| renders only 5 pixels tall (14 CSS pixels).

| renders only 5 pixels tall (14 CSS pixels).

See all renders only 5 pixels tall (12 CSS pixels).

In Cooperation/Other Events and 2 others render only 7 pixels tall (19 CSS pixels).

USENIX Patrons and 1 others render only 5 pixels tall (14 CSS pixels).

by renders only 5 pixels tall (12 CSS pixels).

s.usenix.org/acton/media/24 and 8 others render only 5 pixels tall (12 CSS pixels).

USENIX Association Retweeted and 1 others render only 5 pixels tall (12 CSS pixels).

Daniela Seabra Oliveira and 1 others render only 5 pixels tall (12 CSS pixels).

@dseabraoliveira and 1 others render only 5 pixels tall (12 CSS pixels).

Don't forget:…ine is Jan. 7! and 4 others render only 5 pixels tall (12 CSS pixels).

Be a part of E…San Francisco! renders only 5 pixels tall (12 CSS pixels).

Join us for th…und the world. renders only 5 pixels tall (12 CSS pixels).

s.usenix.org renders only 5 pixels tall (12 CSS pixels).

Dec 12, 2019 renders only 5 pixels tall (12 CSS pixels).

View on Twitter and 1 others render only 5 pixels tall (12 CSS pixels).

Featured Videos renders only 7 pixels tall (19 CSS pixels).

Your browser d…ats available. renders only 5 pixels tall (14 CSS pixels).

Click here to…t HTML5 video. renders only 5 pixels tall (14 CSS pixels).

Nancy Leveson, MIT and 1 others render only 5 pixels tall (14 CSS pixels).

Your browser d…ats available. renders only 5 pixels tall (14 CSS pixels).

Click here to…t HTML5 video. renders only 5 pixels tall (14 CSS pixels).

USENIX Supporters renders only 7 pixels tall (19 CSS pixels).

Open Access Publishing Partner and 3 others render only 7 pixels tall (19 CSS pixels).
© USENIX and 1 others render only 5 pixels tall (14 CSS pixels).
Conference Policies and 2 others render only 5 pixels tall (14 CSS pixels).

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

priority - 4Size 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 <button type="button" class="find-more-butt…tton-processed">View Cookie Statement</button> is close to 1 other tap targets.

The tap target <button type="button" class="agree-button e…default-button">Got it</button> is close to 1 other tap targets.

The tap target <a href="#main-content" class="element-invisi…ment-focusable">Skip to main content</a> is close to 1 other tap targets.

The tap target <a href="/" class="active">USENIX</a> is close to 2 other tap targets.

The tap target <input id="edit-search-block-form--2" type="text" name="search_block_form" class="form-text"> is close to 1 other tap targets.

The tap target <input id="edit-submit" type="submit" name="op" class="form-submit"> is close to 1 other tap targets.

The tap target <a href="/" class="active">Home</a> is close to 2 other tap targets.

The tap target <a href="/about">About</a> and 5 others are close to other tap targets.

The tap target <a href="https://www.fa…n/124487434386">Facebook</a> is close to 1 other tap targets.

The tap target <a href="http://twitter.com/usenix">Twitter</a> is close to 2 other tap targets.

The tap target <a href="https://www.li…x-association/">LinkedIn</a> is close to 2 other tap targets.

The tap target <a href="http://www.you…NIXAssociation">YouTube</a> is close to 1 other tap targets.

The tap target <span>5</span> and 3 others are close to other tap targets.

The tap target <span class="active">1</span> is close to 2 other tap targets.

The tap target <a href="/news/register-now-enigma-2020">Register Now for Enigma 2020!</a> is close to 1 other tap targets.

The tap target <a href="https://www.us…0#registration">Registration</a> and 1 others are close to other tap targets.

The tap target <a id="quicktabs-tab-conferences-0" href="/home?qt-confe…qt-conferences" class="active quickta…ce-3-processed">Upcoming</a> is close to 2 other tap targets.

The tap target <a id="quicktabs-tab-conferences-1" href="/home?qt-confe…qt-conferences" class="active jquery-once-3-processed">Recent</a> and 1 others are close to other tap targets.

The tap target <a href="/conference/enigma2020">Enigma 2020</a> is close to 2 other tap targets.

The tap target <a href="https://twitte…a2020?src=hash" class="PrettyLink has…g customisable">#enigma2020</a> and 4 others are close to other tap targets.

The tap target <a href="https://t.co/82A8Q3IDVz" class="link customisable">https://s.usen…register-now …</a> is close to 3 other tap targets.

The tap target <a href="https://twitte…71402326233090" class="timeline-Tweet-timestamp">Dec 12, 2019</a> is close to 1 other tap targets.

The tap target <a href="https://twitte…71402326233090" class="TweetAction Tw…art web-intent"></a> is close to 2 other tap targets.

The tap target <a href="#" class="TweetAction Tw…-showShareMenu"></a> is close to 2 other tap targets.

The tap target <a href="/conference/li…erence-program">LISA19 Program</a> and 4 others are close to other tap targets.

priority - 3Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,015 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <h2 class="title">Register Now for Enigma 2020!</h2> falls outside the viewport.
The element <p>Registration i…(@enigmaconf).</p> falls outside the viewport.
The element <div>Website Mainte…s time period.</div> falls outside the viewport.
The element <h2 class="block-title clearfix">Featured Videos</h2> falls outside the viewport.
The element <p>From LISA19 Program:</p> falls outside the viewport.
The element <iframe src="https://www.yo…l=0&amp;showinfo=0"> falls outside the viewport.
The element <p>The Container…Alice Goldfuss</p> falls outside the viewport.
The element <p>From SREcon19 EMEA Program:</p> falls outside the viewport.
The element <iframe src="https://www.yo…l=0&amp;showinfo=0"> falls outside the viewport.
The element <p>A Systems Appr…y Leveson, MIT</p> falls outside the viewport.
The element <h2 class="block-title clearfix">USENIX Supporters</h2> falls outside the viewport.
The element <p>Learn more abo…NIX Supporter.</p> falls outside the viewport.
The element <div class="field-content">USENIX Patrons</div> falls outside the viewport.
The element <div class="field-content"></div> falls outside the viewport.
The element <h2 class="block-title clearfix">USENIX Patrons</h2> falls outside the viewport.
The element <div class="view-content"></div> falls outside the viewport.
The element <h2 class="block-title clearfix">USENIX Benefactors</h2> falls outside the viewport.
The element <div class="view-content"></div> falls outside the viewport.
The element <h2 class="block-title clearfix">USENIX Partners</h2> falls outside the viewport.
The element <div class="view-content"></div> falls outside the viewport.
The element <h2 class="block-title clearfix">Open Access Publishing Partner</h2> falls outside the viewport.
The element <div class="view-content"></div> falls outside the viewport.
The element <div id="block-block-27" class="block block-block 27 clearfix">© USENIX 2019</div> falls outside the viewport.

usenix.org HTML validation

Errors

Attribute “xmlns:og” not allowed here.

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

Attribute “xmlns:article” not allowed here.

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

Attribute “xmlns:book” not allowed here.

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

Attribute “xmlns:profile” not allowed here.

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

Attribute “xmlns:video” not allowed here.

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

Attribute “xmlns:product” not allowed here.

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

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: 34 Column: 17 - 51
"...[endif]--> <head profile="http://www.w3.org/1999/xhtml/vocab"> <..."

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: 48 Column: 5 - 66
"...s --> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><scrip..."

Bad value “screen, projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.

Line: 63 Column: 5 - 90
"...> --> <link href="./css/ie.css" media="screen, projection" rel="stylesheet" type="text/css"> <..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 133 Column: 166 - 229
"...="_blank"><img src="/sites/all/themes/waves/css/images/donate-button.png"></a></..."

Attribute “’18”” not allowed on element “a” at this point.

Line: 192 Column: 240 - 323
"...entation (<a href="https://www.usenix.org/conference/osdi18" title=”OSDI ’18” target=”_blank”>OSDI ’..."

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

Line: 253 Column: 1 - 33
"...ng><br /> <a href="/conference/enigma2018">Enigma..." Line: 259 Column: 1 - 29
"...ng><br /> <a href="/conference/fast18">16th U..." Line: 265 Column: 1 - 39
"...ng><br /> <a href="/conference/srecon18americas">SREcon..." Line: 271 Column: 119 - 29
"...ong><br /> <a href="/conference/nsdi18">15th U..." Line: 291 Column: 1 - 42
"...ng><br /> <a href="/conference/enigma_interviews_2">Enigma..." Line: 296 Column: 1 - 29
"...ng><br /> <a href="/conference/lisa17">31st L..." Line: 302 Column: 1 - 37
"...ng><br /> <a href="/conference/srecon17europe">SREcon..." Line: 307 Column: 1 - 40
"...ng><br /> <a href="/conference/enigma_interviews">Enigma..."

Stray end tag “a”.

Line: 253 Column: 49 - 52
"...a 2018</a></a> </di..." Line: 259 Column: 89 - 92
"...logies</a></a> </di..." Line: 265 Column: 61 - 64
"...ericas</a></a> </di..." Line: 271 Column: 102 - 105
"...tation</a></a> </di..." Line: 291 Column: 66 - 69
"...iews 2</a></a> </di..." Line: 296 Column: 90 - 93
"...erence</a></a> </di..." Line: 302 Column: 76 - 79
"...Africa</a></a> </di..." Line: 307 Column: 62 - 65
"...rviews</a></a> </di..."

Attribute “height” not allowed on element “a” at this point.

Line: 517 Column: 50 - 160
"...ix prose"><a class="twitter-timeline" height="300" href="https://twitter.com/usenix" data-widget-id="319586868192755712">Tweets..."

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

Line: 546 Column: 1 - 113
"...</a>:</p> <iframe width="300" height="169" src="https://www.youtube.com/embed/tR31klRieU0" frameborder="0" allowfullscreen></ifra..."

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

Line: 573 Column: 84 - 88
"...-content"><div> <p>Le..." Line: 582 Column: 84 - 88
"...-content"><div> <p>Le..." Line: 591 Column: 84 - 88
"...-content"><div> <p>Le..." Line: 600 Column: 84 - 88
"...-content"><div> <p>Le..." Line: 609 Column: 84 - 88
"...-content"><div> <p>Le..." Line: 618 Column: 84 - 88
"...-content"><div> <p>Le..." Line: 627 Column: 84 - 88
"...-content"><div> <p>Le..." Line: 636 Column: 84 - 88
"...-content"><div> <p>Le..."

Warnings

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

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

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

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

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

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

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

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

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

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

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

Line: 31 Column: 32 - 58
"...IE)]><!--> <html lang="en" dir="ltr" xmlns:og="http://ogp.me/ns#" xmlns:article="http://ogp.me/ns/article#" xmlns:book="http://ogp.me/ns/book#" xmlns:profile="http://ogp.me/ns/profile#" xmlns:video="http://ogp.me/ns/video#" xmlns:product="http://ogp.me/ns/product#" class="no-js"> <!--<..."

Attribute “’18”” is not serializable as XML 1.0.

Line: 192 Column: 240 - 323
"...entation (<a href="https://www.usenix.org/conference/osdi18" title=”OSDI ’18” target=”_blank”>OSDI ’..."

Empty heading.

Line: 222 Column: 25 - 48
"... <h1 class='page-title '> ..."

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usenix.org 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.

usenix.org 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.