skybrary.aero Website Information

Daily Unique Visits: 57,264

Daily Page Views: 343,584

Income Per Day: $687

Estimated Value: $494,640

This website is located in Netherlands and is using following IP address 81.93.56.238. See the complete list of popular websites hosted in Netherlands.

skybrary.aero is registered under .AERO top-level domain. Please check other sites in .AERO zone.

Website skybrary.aero is using the following name servers:

ns2.dnstools.nl
ns1.dnstools.nl

and is probably hosted by SuperHosting.BG Ltd.. See the full list of other websites hosted by SuperHosting.BG Ltd..

The highest website skybrary.aero position in Alexa rank database was 24636 and the lowest rank position was 26416. Current position of skybrary.aero in Alexa rank database is 25046.

Desktop speed score of skybrary.aero (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 skybrary.aero (63/100) is better than the results of 9.16% of other sites and means that the page is not mobile-friendly.

Mobile speed score of skybrary.aero (57/100) is better than the results of 48.04% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

skybrary.aero 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.

skybrary.aero 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: SKYBRARY.AERO
Registry Domain ID: D108300000000240836-AGRS
Registrar WHOIS Server: whois.rrpproxy.net
Registrar URL: http://www.key-systems.net
Updated Date: 2021-04-20T16:23:02Z
Creation Date: 2007-06-22T17:54:24Z
Registry Expiry Date: 2022-06-22T17:54:24Z
Registrar Registration Expiration Date:
Registrar: Key-Systems GmbH
Registrar IANA ID: 269
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Reseller:
Domain Status: ok https://icann.org/epp#ok
Registrant Organization: EUROCONTROL
Registrant State/Province:
Registrant Country: BE
Name Server: NS2.BTICGLOBAL.NET
Name Server: NS3.BTICGLOBAL.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2021-05-06T01:34:29Z

skybrary.aero server information

Servers Location

skybrary.aero desktop page speed rank

Last tested: 2016-12-13

Desktop Speed Medium

72/100

skybrary.aero Desktop Speed Test Quick Summary

priority - 16Leverage 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 - 10Optimize images

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

Optimize the following images to reduce their size by 92.3KiB (72% reduction).

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

Your page has 4 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://skybrary.aero/load.php?debug=false&lang=en&…cripts&skin=monobook&*
http://skybrary.aero/load.php?debug=false&lang=en&…rsion=20160908T091156Z
http://skybrary.aero/load.php?debug=false&lang=en&…ion=20161115T102929Z&*
http://skybrary.aero/load.php?debug=false&lang=en&…ion=20161115T102929Z&*

Optimize CSS Delivery of the following:

http://skybrary.aero/load.php?debug=false&lang=en&…styles&skin=monobook&*
http://skybrary.aero/load.php?debug=false&lang=en&…styles&skin=monobook&*

priority - 4Reduce server response time

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 4.5KiB (35% reduction).

Minifying https://www.google.com/uds/api/search/1.0/0c3990ce…873c9b6/default+en.css could save 3.9KiB (40% reduction) after compression.
Minifying https://cse.google.com/cse/style/look/v2/default.css could save 554B (18% reduction) after compression.

skybrary.aero Desktop Resource Breakdown

Total Resources	58
Number of Hosts	8
Static Resources	41
JavaScript Resources	12
CSS Resources	4

skybrary.aero mobile page speed rank

Last tested: 2016-12-13

Mobile Speed Bad

57/100

skybrary.aero Mobile Speed Test Quick Summary

priority - 34Leverage 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://skybrary.aero/images/60px-Air_Pilots_logo_white_50.png (expiration not specified)
http://skybrary.aero/images/60px-Emergency_and_Contingency.png (expiration not specified)
http://skybrary.aero/images/CAST_logo_white_50.gif.png (expiration not specified)
http://skybrary.aero/images/Contributed_by.png (expiration not specified)
http://skybrary.aero/images/Eurocontrol_logo_white_50.gif.png (expiration not specified)
http://skybrary.aero/images/FSF_logo_white_50.gif.png (expiration not specified)
http://skybrary.aero/images/Icao_logo_white_50.png (expiration not specified)
http://skybrary.aero/images/Logo_SMICG.gif.png (expiration not specified)
http://skybrary.aero/images/RMETS_logo_white_50.png (expiration not specified)
http://skybrary.aero/images/Ukfsc_50.gif.png (expiration not specified)
http://skybrary.aero/images/thumb/Air_Ground_Commu…ound_Communication.gif (expiration not specified)
http://skybrary.aero/images/thumb/Air_Ground_Commu…ound_Communication.gif (expiration not specified)
http://skybrary.aero/images/thumb/Airspace_Infring…space_Infringement.gif (expiration not specified)
http://skybrary.aero/images/thumb/Airspace_Infring…space_Infringement.gif (expiration not specified)
http://skybrary.aero/images/thumb/Airworthiness.gif/120px-Airworthiness.gif (expiration not specified)
http://skybrary.aero/images/thumb/Airworthiness.gif/60px-Airworthiness.gif (expiration not specified)
http://skybrary.aero/images/thumb/Bird_Strike.gif/120px-Bird_Strike.gif (expiration not specified)
http://skybrary.aero/images/thumb/Bird_Strike.gif/60px-Bird_Strike.gif (expiration not specified)
http://skybrary.aero/images/thumb/Controlled_Fligh…light_Into_Terrain.gif (expiration not specified)
http://skybrary.aero/images/thumb/Controlled_Fligh…light_Into_Terrain.gif (expiration not specified)
http://skybrary.aero/images/thumb/Fire.gif/120px-Fire.gif (expiration not specified)
http://skybrary.aero/images/thumb/Fire.gif/60px-Fire.gif (expiration not specified)
http://skybrary.aero/images/thumb/Ground_Operation…-Ground_Operations.gif (expiration not specified)
http://skybrary.aero/images/thumb/Ground_Operation…-Ground_Operations.gif (expiration not specified)
http://skybrary.aero/images/thumb/Level_Bust.gif/120px-Level_Bust.gif (expiration not specified)
http://skybrary.aero/images/thumb/Level_Bust.gif/60px-Level_Bust.gif (expiration not specified)
http://skybrary.aero/images/thumb/Loss_of_Control.…px-Loss_of_Control.gif (expiration not specified)
http://skybrary.aero/images/thumb/Loss_of_Control.…px-Loss_of_Control.gif (expiration not specified)
http://skybrary.aero/images/thumb/Loss_of_Separati…Loss_of_Separation.gif (expiration not specified)
http://skybrary.aero/images/thumb/Loss_of_Separati…Loss_of_Separation.gif (expiration not specified)
http://skybrary.aero/images/thumb/Runway_Excursion…x-Runway_Excursion.gif (expiration not specified)
http://skybrary.aero/images/thumb/Runway_Excursion…x-Runway_Excursion.gif (expiration not specified)
http://skybrary.aero/images/thumb/Runway_Incursion…x-Runway_Incursion.gif (expiration not specified)
http://skybrary.aero/images/thumb/Runway_Incursion…x-Runway_Incursion.gif (expiration not specified)
http://skybrary.aero/images/thumb/Wake_Vortex_Turb…_Vortex_Turbulence.gif (expiration not specified)
http://skybrary.aero/images/thumb/Wake_Vortex_Turb…_Vortex_Turbulence.gif (expiration not specified)
http://skybrary.aero/images/thumb/Weather.gif/120px-Weather.gif (expiration not specified)
http://skybrary.aero/images/thumb/Weather.gif/60px-Weather.gif (expiration not specified)
http://skybrary.aero/skins/common/images/Skybrary_logo.gif (expiration not specified)
http://skybrary.aero/load.php?debug=false&lang=en&…styles&skin=monobook&* (5 minutes)
http://skybrary.aero/load.php?debug=false&lang=en&…cripts&skin=monobook&* (5 minutes)
http://skybrary.aero/load.php?debug=false&lang=en&…styles&skin=monobook&* (5 minutes)
http://skybrary.aero/load.php?debug=false&lang=en&…cripts&skin=monobook&* (5 minutes)
http://cse.google.com/adsense/search/async-ads.js (60 minutes)
https://www.google.com/jsapi?autoload=%7B%22module…22%3A%22en%22%7D%5D%7D (60 minutes)
http://www.google-analytics.com/ga.js (2 hours)

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

Your page has 4 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

http://skybrary.aero/load.php?debug=false&lang=en&…styles&skin=monobook&*
http://skybrary.aero/load.php?debug=false&lang=en&…styles&skin=monobook&*

priority - 10Optimize images

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

Optimize the following images to reduce their size by 94.3KiB (68% reduction).

Compressing http://skybrary.aero/skins/monobook/skybrary_bg_ma…g?2014-10-02T11:00:00Z could save 88KiB (72% reduction).
Compressing http://www.google.com/cse/static/en/google_custom_search_watermark.gif could save 1.4KiB (71% reduction).
Compressing https://www.google.com/uds/css/small-logo.png could save 1.1KiB (72% reduction).
Compressing https://www.google.com/uds/css/v2/clear.png could save 898B (88% reduction).
Compressing https://www.google.com/uds/css/v2/search_box_icon.png could save 864B (84% reduction).
Compressing http://skybrary.aero/images/thumb/Runway_Excursion…x-Runway_Excursion.gif could save 790B (34% reduction).
Compressing http://skybrary.aero/images/thumb/Ground_Operation…-Ground_Operations.gif could save 662B (15% reduction).
Compressing http://skybrary.aero/images/thumb/Runway_Incursion…x-Runway_Incursion.gif could save 641B (23% reduction).

priority - 5Reduce server response time

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 4.5KiB (35% reduction).

skybrary.aero Mobile Resource Breakdown

Total Resources	72
Number of Hosts	8
Static Resources	55
JavaScript Resources	12
CSS Resources	4

skybrary.aero mobile page usability

Last tested: 2016-12-13

Mobile Usability Bad

63/100

skybrary.aero 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.

If you wish to…are invited to and 1 others render only 5 pixels tall (12 CSS pixels).

join renders only 7 pixels tall (18 CSS pixels).

Operational and 1 others render only 6 pixels tall (16 CSS pixels).

Performance and 5 others render only 6 pixels tall (16 CSS pixels).

Controlled Flight Into Terrain and 14 others render only 5 pixels tall (13 CSS pixels).

Highlighted renders only 6 pixels tall (16 CSS pixels).

Article renders only 6 pixels tall (16 CSS pixels).

Dangerous good…fety challenge renders only 6 pixels tall (16 CSS pixels).

posted 12 December 2016 in renders only 4 pixels tall (11 CSS pixels).

Category:Accid…and Incidents renders only 4 pixels tall (11 CSS pixels).

On 7 October 2…pleted flight. renders only 5 pixels tall (13 CSS pixels).

Read more >> renders only 5 pixels tall (13 CSS pixels).

References and 2 others render only 6 pixels tall (16 CSS pixels).

Accidents and…idents browser renders only 5 pixels tall (13 CSS pixels).

Flight Deck Pr…or Controllers and 19 others render only 5 pixels tall (13 CSS pixels).

New and 1 others render only 5 pixels tall (13 CSS pixels).

page renders only 4 pixels tall (11 CSS pixels).

view source and 2 others render only 4 pixels tall (11 CSS pixels).

Log in renders only 4 pixels tall (11 CSS pixels).

information and 2 others render only 5 pixels tall (12 CSS pixels).

Licence agreem…ode of conduct and 25 others render only 4 pixels tall (11 CSS pixels).

This page was…016, at 11:33. and 1 others render only 4 pixels tall (11 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 - 10Size 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="/index.php/Por…an_Performance">HumanPerformance</a> and 2 others are close to other tap targets.

The tap target <a href="/index.php/Cat…_Communication">Air Ground Communication</a> and 8 others are close to other tap targets.

The tap target <a href="/index.php/A33…lippines,_2013">Dangerous good…fety challenge</a> is close to 1 other tap targets.

The tap target <a href="/index.php/Cat…_and_Incidents">Category:Accid…and Incidents</a> and 1 others are close to other tap targets.

The tap target <a href="/index.php/Spe…dents?_single=">Accidents and…idents browser</a> is close to 1 other tap targets.

The tap target <a href="/index.php/Por…port_Directory">Airport Directory</a> and 17 others are close to other tap targets.

The tap target <a href="http://www.sky…hp/EUROCONTROL"></a> and 6 others are close to other tap targets.

The tap target <a href="/index.php/Main_Page">Page</a> is close to 2 other tap targets.

The tap target <a href="/index.php/Talk:Main_Page">Discussion</a> and 1 others are close to other tap targets.

The tap target <a href="/index.php?tit…rnto=Main+Page">Log in</a> is close to 1 other tap targets.

The tap target <a href="/index.php/Main_Page">Home page</a> and 10 others are close to other tap targets.

The tap target <a href="/index.php/About_SKYbrary">About SKYbrary</a> and 11 others are close to other tap targets.

skybrary.aero HTML validation

Errors

Bad value “ExportRDF” for attribute “rel” on element “link”: The string “ExportRDF” is not a registered keyword.

Line: 10 Column: 1 - 137
"...tom10" /> <link rel="ExportRDF" type="application/rdf+xml" title="Main Page" href="/index.php?title=Special:ExportRDF/Main_Page&xmlmime=rdf" /> <link..."

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

Line: 60 Column: 70 - 153
"...tent-ltr"><table style="width:100%" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 64 Column: 1 - 181
"...ign:top"> <table style="width:99%; border:3px solid #aaa; border-bottom:none; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="0" align="center"> <tr>..." Line: 75 Column: 1 - 58
"...></table> <table style="width:100%" cellpadding="5" cellspacing="2"> <tr>..." Line: 146 Column: 8 - 179
"..."> <table> <table style="width:99%; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 151 Column: 1 - 107
"...></table> <table style="width:99%; border:0px solid #aaa;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 160 Column: 1 - 179
"...></table> <table style="width:99%; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 165 Column: 1 - 179
"...></table> <table style="width:99%; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 170 Column: 1 - 106
"...></table> <table style="width:50%; border:0px solid #aaa;" border="0" cellpadding="5" cellspacing="1" align="right"> <tr>..." Line: 185 Column: 1 - 179
"...></table> <table style="width:99%; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 190 Column: 1 - 107
"...></table> <table style="width:99%; border:0px solid #aaa;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 201 Column: 1 - 84
"...></table> <table style="width:100%" border="0" cellpadding="5" cellspacing="2" align="center"> <tr..." Line: 206 Column: 1 - 177
"...ign:top"> <table style="width:99%; border:3px solid #aaa; border-top:none; border-left:none; border-right:none; background-color: #CEF2E0;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 211 Column: 1 - 73
"...></table> <table style="width:99%;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 227 Column: 1 - 177
"...ign:top"> <table style="width:99%; border:3px solid #aaa; border-top:none; border-left:none; border-right:none; background-color: #CEDFF2;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 232 Column: 1 - 73
"...></table> <table style="width:99%;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 263 Column: 1 - 177
"...ign:top"> <table style="width:99%; border:3px solid #aaa; border-top:none; border-left:none; border-right:none; background-color: #FFE6F2;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 268 Column: 1 - 73
"...></table> <table style="width:99%;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 298 Column: 1 - 84
"...></table> <table style="width:100%" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..."

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “table” element is obsolete. Use CSS instead.

Line: 60 Column: 70 - 153
"...tent-ltr"><table style="width:100%" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 64 Column: 1 - 181
"...ign:top"> <table style="width:99%; border:3px solid #aaa; border-bottom:none; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="0" align="center"> <tr>..." Line: 146 Column: 8 - 179
"..."> <table> <table style="width:99%; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 151 Column: 1 - 107
"...></table> <table style="width:99%; border:0px solid #aaa;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 160 Column: 1 - 179
"...></table> <table style="width:99%; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 165 Column: 1 - 179
"...></table> <table style="width:99%; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 170 Column: 1 - 106
"...></table> <table style="width:50%; border:0px solid #aaa;" border="0" cellpadding="5" cellspacing="1" align="right"> <tr>..." Line: 185 Column: 1 - 179
"...></table> <table style="width:99%; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 190 Column: 1 - 107
"...></table> <table style="width:99%; border:0px solid #aaa;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 201 Column: 1 - 84
"...></table> <table style="width:100%" border="0" cellpadding="5" cellspacing="2" align="center"> <tr..." Line: 206 Column: 1 - 177
"...ign:top"> <table style="width:99%; border:3px solid #aaa; border-top:none; border-left:none; border-right:none; background-color: #CEF2E0;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 211 Column: 1 - 73
"...></table> <table style="width:99%;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 227 Column: 1 - 177
"...ign:top"> <table style="width:99%; border:3px solid #aaa; border-top:none; border-left:none; border-right:none; background-color: #CEDFF2;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 232 Column: 1 - 73
"...></table> <table style="width:99%;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 263 Column: 1 - 177
"...ign:top"> <table style="width:99%; border:3px solid #aaa; border-top:none; border-left:none; border-right:none; background-color: #FFE6F2;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 268 Column: 1 - 73
"...></table> <table style="width:99%;" cellpadding="5" cellspacing="2" align="center"> <tr>..." Line: 298 Column: 1 - 84
"...></table> <table style="width:100%" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..."

The “border” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “td” element is obsolete. Use CSS instead.

Line: 67 Column: 5 - 106
"...er"> <tr> <td style="font-size:medium; font-weight:bold; border:3px solid #aaa; border-bottom:none;" align="center">Operat..." Line: 69 Column: 6 - 140
"...sues </td> <td style="font-size:medium; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" align="center"><a ..." Line: 71 Column: 6 - 140
"...</a> </td> <td style="font-size:medium; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" align="center"><a hre..." Line: 73 Column: 6 - 140
"...</a> </td> <td style="font-size:medium; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" align="center"><a hre..." Line: 78 Column: 5 - 19
"..."2"> <tr> <td align="center"><a hre..." Line: 80 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 82 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 84 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 86 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 89 Column: 5 - 19
"...</tr> <tr> <td align="center"><a hre..." Line: 91 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 93 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 95 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 97 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 100 Column: 5 - 19
"...</tr> <tr> <td align="center"><a hre..." Line: 102 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 104 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 106 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 108 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 111 Column: 5 - 19
"...</tr> <tr> <td align="center"><a hre..." Line: 113 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 115 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 117 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 119 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 122 Column: 5 - 19
"...</tr> <tr> <td align="center"><a hre..." Line: 124 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 126 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 128 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 130 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 133 Column: 5 - 19
"...</tr> <tr> <td align="center"><a hre..." Line: 135 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 137 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 139 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 141 Column: 6 - 19
"...</a> </td> <td align="center"><a hre..." Line: 301 Column: 5 - 18
"...er"> <tr> <td align="right"> <img ..."

Start tag for “table” seen but the previous “table” is still open.

Line: 146 Column: 8 - 179
"..."> <table> <table style="width:99%; font-weight:bold; border:3px solid #aaa; border-top:none; border-left:none; border-right:none;" border="0" cellpadding="5" cellspacing="2" align="center"> <tr>..."

Stray end tag “td”.

Line: 200 Column: 1 - 5
"... </table> </td></tr><..."

Stray end tag “tr”.

Line: 200 Column: 6 - 10
"...ble> </td></tr></tabl..."

Stray end tag “table”.

Line: 200 Column: 11 - 18
"...</td></tr></table> <tabl..."

Duplicate ID “catlinks”.

Line: 320 Column: 3 - 57
"..."</div> <div id='catlinks' class='catlinks catlinks-allhidden'></div>..."

Bad value “archives” for attribute “rel” on element “a”: The string “archives” is not a registered keyword.

Line: 333 Column: 25 - 149
"...-history"><a href="/index.php?title=Main_Page&action=history" rel="archives" title="Past revisions of this page [h]" accesskey="h">Histor..."

Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed

Line: 394 Column: 5 - 25
"...ody"> <gcse:searchbox-only></gcse..."

Bad value “smw-browse” for attribute “rel” on element “a”: The string “smw-browse” is not a registered keyword.

Line: 408 Column: 30 - 92
"...owselink"><a href="/index.php/Special:Browse/Main_Page" rel="smw-browse">Browse..."

Warnings

The first occurrence of ID “catlinks” was here.

Line: 53 Column: 5 - 59
"...</h1> <div id='catlinks' class='catlinks catlinks-allhidden'></div>..."

Element name “gcse:searchbox-only” cannot be represented as XML 1.0.

Line: 394 Column: 5 - 25
"...ody"> <gcse:searchbox-only></gcse..."

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skybrary.aero 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.

skybrary.aero 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.

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skybrary.aero desktop page speed rank

skybrary.aero Desktop Speed Test Quick Summary

priority - 16Leverage 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 - 10Optimize images

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

Optimize the following images to reduce their size by 92.3KiB (72% reduction).

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

Your page has 4 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 4Reduce server response time

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 4.5KiB (35% reduction).

skybrary.aero Desktop Resource Breakdown

skybrary.aero mobile page speed rank

skybrary.aero Mobile Speed Test Quick Summary

priority - 34Leverage 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 - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 10Optimize images

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

Optimize the following images to reduce their size by 94.3KiB (68% reduction).

priority - 5Reduce server response time

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 4.5KiB (35% reduction).

skybrary.aero Mobile Resource Breakdown

skybrary.aero mobile page usability

skybrary.aero 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.

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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 - 10Size 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.

skybrary.aero HTML validation

Errors

Bad value “ExportRDF” for attribute “rel” on element “link”: The string “ExportRDF” is not a registered keyword.

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “td” element is obsolete. Use CSS instead.

Start tag for “table” seen but the previous “table” is still open.

Stray end tag “td”.

Stray end tag “tr”.

Stray end tag “table”.

Duplicate ID “catlinks”.

Bad value “archives” for attribute “rel” on element “a”: The string “archives” is not a registered keyword.

Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed

Bad value “smw-browse” for attribute “rel” on element “a”: The string “smw-browse” is not a registered keyword.

Warnings

The first occurrence of ID “catlinks” was here.

Element name “gcse:searchbox-only” cannot be represented as XML 1.0.

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skybrary.aero Ping

skybrary.aero TRACEROUTE