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londonair.org.uk website information.

londonair.org.uk domain name is registered by .UK top-level domain registry. See the other sites registred in .UK domain zone.

Following name servers are specified for londonair.org.uk domain:

  • strcnsint2.kcl.ac.uk
  • watcnsint.kcl.ac.uk
  • strcnsint.kcl.ac.uk
  • dencnsint.kcl.ac.uk

and probably website londonair.org.uk is hosted by Filoo GmbH web hosting company. Check the complete list of other most popular websites hosted by Filoo GmbH hosting company.

According to Alexa traffic rank the highest website londonair.org.uk position was 27930 (in the world). The lowest Alexa rank position was 999658. Now website londonair.org.uk ranked in Alexa database as number 236669 (in the world).

Website londonair.org.uk Desktop speed measurement score (58/100) is better than the results of 33.06% of other sites shows that the page desktop performance can be improved.

londonair.org.uk Mobile usability score (97/100) is better than the results of 49.9% of other sites and means that the page is mobile-friendly.

Mobile speed measurement score of londonair.org.uk (5/100) is better than the results of 0.64% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Nov-15-2024 236,6691,027
Nov-14-2024 237,696-319
Nov-13-2024 237,3770
Nov-12-2024 237,3770
Nov-11-2024 237,3770
Nov-10-2024 237,3771,623
Nov-09-2024 239,000-10,800

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londonair.org.uk Rank History

Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.


londonair.org.uk whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.

Domain name:
londonair.org.uk

Data validation:
Nominet was able to match the registrant's name and address against a 3rd party data source on 08-Jan-2020

Registrar:
Gandi [Tag = GANDI]
URL: https://www.gandi.net

Relevant dates:
Registered on: 10-Jun-2004
Expiry date: 10-Jun-2024
Last updated: 23-Jun-2020

Registration status:
Registered until expiry date.

Name servers:
ns1.ic.ac.uk
ns2.ic.ac.uk

WHOIS lookup made at 22:57:21 05-Jun-2022

--
This WHOIS information is provided for free by Nominet UK the central registry
for .uk domain names. This information and the .uk WHOIS are:

Copyright Nominet UK 1996 - 2022.

You may not access the .uk WHOIS or use any data from it except as permitted
by the terms of use available in full at https://www.nominet.uk/whoisterms,
which includes restrictions on: (A) use of the data for advertising, or its
repackaging, recompilation, redistribution or reuse (B) obscuring, removing
or hiding any or all of this notice and (C) exceeding query rate or volume
limits. The data is provided on an 'as-is' basis and may lag behind the
register. Access may be withdrawn or restricted at any time.

londonair.org.uk server information

Servers Location

IP Address
137.73.146.61
Country
United Kingdom
Region
England
City
London

londonair.org.uk desktop page speed rank

Last tested: 2016-03-19

Desktop Speed Bad
58/100

londonair.org.uk Desktop Speed Test Quick Summary


priority - 50 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:

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

Your page has 13 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

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Optimize CSS Delivery of the following:

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priority - 7 Optimize images

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priority - 3 Avoid landing page redirects

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

http://londonair.org.uk/
http://www.londonair.org.uk/
http://www.londonair.org.uk/LondonAir/Default.aspx

priority - 3 Reduce server response time

In our test, your server responded in 0.49 seconds. There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.

priority - 3 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 24KiB (27% reduction).

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priority - 2 Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 51% of the final above-the-fold content could be rendered with the full HTML response.

priority - 1 Minify HTML

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Minify HTML for the following resources to reduce their size by 7.1KiB (27% reduction).

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priority - 0 Minify CSS

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londonair.org.uk Desktop Resources

Total Resources192
Number of Hosts20
Static Resources150
JavaScript Resources33
CSS Resources8

londonair.org.uk Desktop Resource Breakdown

londonair.org.uk mobile page speed rank

Last tested: 2019-11-25

Mobile Speed Bad
5/100

londonair.org.uk Mobile Speed Test Quick Summary


priority - 510 Optimize images

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

Your page has 20 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

http://londonair.org.uk/LondonAir/WebResource.axd?…1&t=635586488020000000
http://londonair.org.uk/LondonAir/WebResource.axd?…1&t=635586488020000000
https://www.google.com/coop/cse/brand?form=cse-search-box&lang=en
https://maps.googleapis.com/maps/api/js?key=AIzaSy…yHKP0OyszxfgTDQ3-cMZR4
http://londonair.org.uk/assets/js/GoogleMapV3Utils.js?v=1.0
http://londonair.org.uk/assets/js/extDraggableObject.min.js?v=1.0
https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.16.4/lodash.min.js
https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.2/d3.min.js
https://cdn.rawgit.com/novus/nvd3/v1.8.1/build/nv.d3.js
https://www.londonair.org.uk/Research/custom/libs/leaflet/leaflet.js
https://cdn.jsdelivr.net/leaflet.esri/1.0.4/esri-leaflet.js
https://cdn.jsdelivr.net/leaflet.esri.renderers/1.…i-leaflet-renderers.js
https://www.londonair.org.uk/Research/custom/js/le…pedlayercontrol.min.js
https://api.mapbox.com/mapbox.js/plugins/leaflet-f…flet.fullscreen.min.js
http://londonair.org.uk/assets/js/nowcast-map.js?v=1.232
http://londonair.org.uk/assets/dist/jquery/jquery-2.2.2.min.js
http://londonair.org.uk/assets/dist/bootstrap/js/bootstrap.min.js
http://londonair.org.uk/assets/dist/fastclick/fastclick.js
http://londonair.org.uk/assets/js/base.js?v=1.3322
http://londonair.org.uk/react/cookie-widget.js

Optimize CSS Delivery of the following:

http://londonair.org.uk/assets/dist/bootstrap/css/bootstrap.min.css?v=1.0
http://londonair.org.uk/assets/css/bootstrap-extend-ij.css?v=1.0
http://londonair.org.uk/assets/dist/fontawesome/cs…-awesome.min.css?v=1.0
http://londonair.org.uk/assets/css/base.css?v=1ss1
http://londonair.org.uk/assets/css/guide.css?v=1.0
http://londonair.org.uk/assets/css/responsive.css?v=1.0
https://fonts.googleapis.com/css?family=Source+San…00italic,600,600italic
http://londonair.org.uk/assets/dist/courier-prime-sans/font.css?v=1.0
http://londonair.org.uk/assets/css/accessibility.css?v=1w
https://www.londonair.org.uk/Research/custom/libs/leaflet/leaflet.css
https://api.mapbox.com/mapbox.js/plugins/leaflet-f…leaflet.fullscreen.css

priority - 26 Reduce server response time

In our test, your server responded in 1.9 seconds.

There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.

priority - 17 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:

http://londonair.org.uk/assets/dist/bootstrap/js/bootstrap.min.js (expiration not specified)
http://londonair.org.uk/assets/dist/fastclick/fastclick.js (expiration not specified)
http://londonair.org.uk/assets/dist/jquery/jquery-2.2.2.min.js (expiration not specified)
http://londonair.org.uk/assets/img/bg/skyline.png (expiration not specified)
http://londonair.org.uk/assets/img/bg/texture-petrol.png (expiration not specified)
http://londonair.org.uk/assets/img/bg/texture-sky.png (expiration not specified)
http://londonair.org.uk/assets/img/bg/texture-slate.png (expiration not specified)
http://londonair.org.uk/assets/img/logo/kcl-logo.svg (expiration not specified)
http://londonair.org.uk/assets/img/logo/london-air-logo.svg (expiration not specified)
http://londonair.org.uk/assets/img/promo/guide.jpg (expiration not specified)
http://londonair.org.uk/assets/img/promo/media-img.jpg (expiration not specified)
http://londonair.org.uk/assets/img/promo/newsletter.jpg (expiration not specified)
http://londonair.org.uk/react/cookie-widget.js (expiration not specified)
https://www.londonair.org.uk/Research/custom/js/le…pedlayercontrol.min.js (expiration not specified)
https://www.londonair.org.uk/Research/custom/libs/leaflet/leaflet.css (expiration not specified)
https://www.londonair.org.uk/Research/custom/libs/leaflet/leaflet.js (expiration not specified)
http://static.hotjar.com/c/hotjar-67365.js?sv=5 (60 seconds)
https://cdn.syndication.twimg.com/timeline/profile…800&with_replies=false (5 minutes)
https://syndication.twitter.com/settings (10 minutes)
http://platform.twitter.com/widgets.js (30 minutes)
https://cse.google.com/coop/cse/brand?form=cse-search-box&lang=en (30 minutes)
https://maps.googleapis.com/maps/api/js?key=AIzaSy…yHKP0OyszxfgTDQ3-cMZR4 (30 minutes)
http://www.google-analytics.com/ga.js (2 hours)

priority - 8 Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 67% of the final above-the-fold content could be rendered with the full HTML response.
Click to see the screenshot with only the HTML response:

priority - 5 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 48.9KiB (46% reduction).

Minifying https://cdn.rawgit.com/novus/nvd3/v1.8.1/build/nv.d3.js could save 41.4KiB (48% reduction) after compression.
Minifying http://londonair.org.uk/assets/dist/fastclick/fastclick.js could save 4.6KiB (62% reduction) after compression.
Minifying http://londonair.org.uk/assets/js/base.js?v=1.3322 could save 1.1KiB (50% reduction) after compression.
Minifying http://londonair.org.uk/LondonAir/WebResource.axd?…1&t=635586488020000000 could save 778B (15% reduction) after compression.
Minifying http://londonair.org.uk/LondonAir/WebResource.axd?…1&t=635586488020000000 could save 525B (12% reduction) after compression.
Minifying http://londonair.org.uk/assets/js/GoogleMapV3Utils.js?v=1.0 could save 491B (50% reduction) after compression.

priority - 1 Enable 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 14.4KiB (63% reduction).

Compressing http://londonair.org.uk/assets/img/logo/kcl-logo.svg could save 9.1KiB (64% reduction).
Compressing http://londonair.org.uk/assets/img/logo/london-air-logo.svg could save 4.7KiB (61% reduction).
Compressing https://api.mapbox.com/mapbox.js/plugins/leaflet-f…leaflet.fullscreen.css could save 626B (62% reduction).

priority - 0 Minify 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 3.6KiB (33% reduction).

Minifying http://londonair.org.uk/assets/css/bootstrap-extend-ij.css?v=1.0 could save 1.4KiB (65% reduction) after compression.
Minifying http://londonair.org.uk/assets/css/base.css?v=1ss1 could save 1.1KiB (29% reduction) after compression.
Minifying http://londonair.org.uk/assets/css/responsive.css?v=1.0 could save 440B (30% reduction) after compression.
Minifying https://www.londonair.org.uk/Research/custom/libs/leaflet/leaflet.css could save 407B (17% reduction) after compression.
Minifying https://api.mapbox.com/mapbox.js/plugins/leaflet-f…leaflet.fullscreen.css could save 175B (18% reduction).

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 2.4KiB (14% reduction).

Minifying http://londonair.org.uk/LondonAir/Default.aspx could save 2.4KiB (14% reduction) after compression.

londonair.org.uk Mobile Resources

Total Resources93
Number of Hosts23
Static Resources59
JavaScript Resources28
CSS Resources13

londonair.org.uk Mobile Resource Breakdown

londonair.org.uk mobile page usability

Last tested: 2019-11-25

Mobile Usability Good
97/100

londonair.org.uk Mobile Usability Test Quick Summary


priority - 2 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 <header class="bg-ground bg-push">Customise</header> is close to 1 other tap targets.

The tap target <a href="https://twitte…ution?src=hash" class="PrettyLink has…g customisable">#airpollution</a> and 6 others are close to other tap targets.
The tap target <a href="https://t.co/d16o2zwars" class="link customisable">https://www.th…h-study-says …</a> is close to 1 other tap targets.
The tap target <a href="/LondonAir/nowcast.aspx">Air Pollution Now</a> and 26 others are close to other tap targets.
The tap target <a href="http://www.erg.kcl.ac.uk">ERG, King’s College London</a> is close to 1 other tap targets.
The tap target <a href="/london/asp/copyright.asp">About</a> and 4 others are close to other tap targets.

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londonair.org.uk Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.

londonair.org.uk TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.