AlexaWhoisServer InformationDesktop SpeedMobile SpeedMobile UsabilityHTML ErrorsPingTraceroute

CORE.AC.UK CORE – Aggregating the world’s open access research papers

core.ac.uk Website Information

Daily Unique Visits: 850,847

Daily Page Views: 6,806,776

Income Per Day: $6,807

Estimated Value: $7,351,560

This website is located in United States and is using following IP address 99.81.75.219. See the complete list of popular websites hosted in United States.

core.ac.uk is registered under .UK top-level domain. Please check other sites in .UK zone.

Website core.ac.uk is using the following name servers:

  • nse-1.open.ac.uk
  • nse-2.open.ac.uk
  • nse-0.open.ac.uk

and is probably hosted by CLOUDFLARENET - Cloudflare, Inc., US. See the full list of other websites hosted by CLOUDFLARENET - Cloudflare, Inc., US.

The highest website core.ac.uk position in Alexa rank database was 1742 and the lowest rank position was 2097. Current position of core.ac.uk in Alexa rank database is 1791.

Desktop speed score of core.ac.uk (67/100) is better than the results of 45.93% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of core.ac.uk (84/100) is better than the results of 26.85% of other sites and means that the page is mobile-friendly.

Mobile speed score of core.ac.uk (58/100) is better than the results of 50.23% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Advertisement

core.ac.uk 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.

core.ac.uk 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:
ac.uk

Registrant:
The JNT Association

Registrant type:
Other

Registrant's address:
Lumen House
Library Avenue
Harwell
Didcot
OX11 OSG
GB

Registrar:
No registrar listed. This domain is directly registered with Nominet.

Relevant dates:
Registered on: before Aug-1996
Registration status:
No registration status listed.

Name servers:
ns0.ja.net.
ns2.ja.net.
ns3.ja.net.
ns4.ja.net.
auth03.ns.uu.net.
ns1.surfnet.nl.
dns-3.dfn.de.

WHOIS lookup made at 08:45:41 19-Sep-2024

--
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 - 2024.

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.

core.ac.uk server information

Servers Location

core.ac.uk desktop page speed rank

Last tested: 2016-09-06

Desktop Speed Medium
67/100

core.ac.uk Desktop Speed Test Quick Summary


priority - 19Optimize images

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

Optimize the following images to reduce their size by 188.7KiB (92% reduction).

Compressing and resizing https://core.ac.uk/images/4d0243b.png could save 126.3KiB (96% reduction).
Compressing and resizing https://core.ac.uk/images/7828959.png could save 50.8KiB (98% reduction).
Compressing and resizing https://core.ac.uk/images/e1af79e.png could save 8.6KiB (50% reduction).
Compressing and resizing https://core.ac.uk/images/e7c8fcd.png could save 2.9KiB (66% reduction).

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

Your page has 3 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.google.com/jsapi
https://core.ac.uk/js/22eabe3.js
https://core.ac.uk/js/62e0b62.js

Optimize CSS Delivery of the following:

https://core.ac.uk/css/6f28ad2.css
https://core.ac.uk/css/0097c30.css
https://core.ac.uk/css/dccc0ed.css
https://core.ac.uk/css/a717030.css

priority - 7Leverage 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://core.ac.uk/css/0097c30.css (expiration not specified)
https://core.ac.uk/css/6f28ad2.css (expiration not specified)
https://core.ac.uk/css/a717030.css (expiration not specified)
https://core.ac.uk/css/dccc0ed.css (expiration not specified)
https://core.ac.uk/images/4d0243b.png (expiration not specified)
https://core.ac.uk/images/7828959.png (expiration not specified)
https://core.ac.uk/images/964589b.png (expiration not specified)
https://core.ac.uk/images/e1af79e.png (expiration not specified)
https://core.ac.uk/images/e6e1883.png (expiration not specified)
https://core.ac.uk/images/e7c8fcd.png (expiration not specified)
https://core.ac.uk/js/22eabe3.js (expiration not specified)
https://core.ac.uk/js/62e0b62.js (expiration not specified)
https://www.google.com/jsapi (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.google-analytics.com/ga.js (2 hours)

priority - 5Minify 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 44.2KiB (25% reduction).

Minifying https://core.ac.uk/css/6f28ad2.css could save 42.7KiB (25% reduction) after compression.
Minifying https://core.ac.uk/css/0097c30.css could save 1.5KiB (34% reduction) after compression.

priority - 4Minify 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 40.7KiB (28% reduction).

Minifying https://core.ac.uk/js/22eabe3.js could save 40.7KiB (28% reduction) after compression.

priority - 2Prioritize 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 60% of the final above-the-fold content could be rendered with the full HTML response.

priority - 0Minify 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 590B (17% reduction).

Minifying https://core.ac.uk/ could save 590B (17% reduction) after compression.

core.ac.uk Desktop Resource Breakdown

Total Resources19
Number of Hosts4
Static Resources15
JavaScript Resources5
CSS Resources4

core.ac.uk mobile page speed rank

Last tested: 2017-06-06

Mobile Speed Bad
58/100

core.ac.uk Mobile Speed Test Quick Summary


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

Your page has 3 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

https://core.ac.uk/css/6f28ad2.css
https://core.ac.uk/css/68cc884.css
https://core.ac.uk/css/a717030.css

priority - 29Optimize images

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

Optimize the following images to reduce their size by 287.6KiB (48% reduction).

Compressing https://core.ac.uk/images/4f70dbe.png could save 86.1KiB (59% reduction).
Compressing and resizing https://core.ac.uk/images/e370ca7.png could save 42.7KiB (87% reduction).
Compressing https://core.ac.uk/images/7c5459f.png could save 39.5KiB (47% reduction).
Compressing https://core.ac.uk/images/072d714.png could save 35.7KiB (21% reduction).
Compressing and resizing https://core.ac.uk/images/1f59389.png could save 19.2KiB (75% reduction).
Compressing and resizing https://core.ac.uk/images/9878a37.png could save 19KiB (75% reduction).
Compressing and resizing https://core.ac.uk/images/ec253a3.png could save 11.3KiB (75% reduction).
Compressing https://core.ac.uk/images/b819128.jpg could save 9.6KiB (89% reduction).
Compressing and resizing https://core.ac.uk/images/a524566.png could save 7.2KiB (83% reduction).
Compressing https://core.ac.uk/images/dab7dee.png could save 4.2KiB (34% reduction).
Compressing https://core.ac.uk/images/a05b335.png could save 2.4KiB (38% reduction).
Compressing https://core.ac.uk/images/b57a879.png could save 2KiB (36% reduction).
Compressing https://core.ac.uk/images/1dfa9d5.png could save 1.6KiB (13% reduction).
Compressing https://core.ac.uk/images/61ecfbf.jpeg could save 1.5KiB (30% reduction).
Compressing and resizing https://core.ac.uk/images/8ec69f0.png could save 1.4KiB (39% reduction).
Compressing https://core.ac.uk/images/2e4f54a.png could save 979B (59% reduction).
Compressing https://core.ac.uk/images/aed4171.png could save 942B (59% reduction).
Compressing https://core.ac.uk/images/0549928.jpeg could save 932B (22% reduction).
Compressing https://core.ac.uk/images/01fc0c3.jpeg could save 847B (22% reduction).
Compressing https://core.ac.uk/images/ad18e8d.png could save 675B (32% reduction).

priority - 1Leverage 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://www.google.com/jsapi (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 0Minify 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 865B (19% reduction).

Minifying https://core.ac.uk/ could save 865B (19% reduction) after compression.

core.ac.uk Mobile Resource Breakdown

Total Resources41
Number of Hosts3
Static Resources38
JavaScript Resources3
CSS Resources3

core.ac.uk mobile page usability

Last tested: 2017-06-06

Mobile Usability Medium
84/100

core.ac.uk Mobile Usability Test Quick Summary


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 - 4Use 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.

Data Providers and 5 others render only 6 pixels tall (15 CSS pixels).

Search renders only 6 pixels tall (15 CSS pixels).

Unique dataset…nduct research and 1 others render only 7 pixels tall (18 CSS pixels).

using CORE technologies and 1 others render only 7 pixels tall (18 CSS pixels).

CORE listed Nu…arch databases and 3 others render only 7 pixels tall (19 CSS pixels).
(05/16/2017) and 3 others render only 6 pixels tall (16 CSS pixels).

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 983 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <div class="row">Powerful insig…nduct research</div> falls outside the viewport.
The element <div class="col-md-12">Ben JohnsonHEF…Next</div> falls outside the viewport.
The element <div class="row"></div> falls outside the viewport.
The element <div class="row"></div> falls outside the viewport.
The element <div class="row"></div> falls outside the viewport.
The element <div class="row"></div> falls outside the viewport.
The element <div class="row"></div> falls outside the viewport.
The element <div class="row"></div> falls outside the viewport.
The element <div class="row"></div> falls outside the viewport.

priority - 1Size 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="http://blog.core.ac.uk">Blog</a> is close to 1 other tap targets.

The tap target <a href="https://blog.c…ion-full-text/" class="blogtitle">CORE reaches a…lion full text</a> and 3 others are close to other tap targets.
The tap target <a href="/about">About</a> and 2 others are close to other tap targets.

core.ac.uk HTML validation

Errors

Bad value “cleartype” for attribute “http-equiv” on element “meta”.

Line: 14 Column: 9 - 50
"...> <meta content="on" http-equiv="cleartype"> ..."

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

Line: 66 Column: 21 - 126
"... <div class="col-md-10 col-md-offset-1 col-sm-10 col-sm-offset-1 col-xs-10 col-xs-offset-1" align="center"> ..."

Bad value “Search 83,073,166 open access articles” for attribute “placeholder” on element “input”: Line feed not allowed.

Line: 82 Column: 9 - 14
"...> <input type="text" class="" placeholder='Search 83,073,166 open access articles' id="q" name="q" value="" required /> ..."

Stray end tag “div”.

Line: 495 Column: 5 - 10
".../div> </div> <foo..."

Warnings

The “banner” role is unnecessary for element “header”.

Line: 34 Column: 9 - 95
"... <header class="masthead masthead--focussed " role="banner" data-mobilemenu-focussed=""> <..."

core.ac.uk similar domains

Similar domains:
www.core.com
www.core.net
www.core.org
www.core.info
www.core.biz
www.core.us
www.core.mobi
www.ore.ac.uk
www.core.ac.uk
www.xore.ac.uk
www.cxore.ac.uk
www.xcore.ac.uk
www.dore.ac.uk
www.cdore.ac.uk
www.dcore.ac.uk
www.fore.ac.uk
www.cfore.ac.uk
www.fcore.ac.uk
www.vore.ac.uk
www.cvore.ac.uk
www.vcore.ac.uk
www.cre.ac.uk
www.cire.ac.uk
www.coire.ac.uk
www.ciore.ac.uk
www.ckre.ac.uk
www.cokre.ac.uk
www.ckore.ac.uk
www.clre.ac.uk
www.colre.ac.uk
www.clore.ac.uk
www.cpre.ac.uk
www.copre.ac.uk
www.cpore.ac.uk
www.coe.ac.uk
www.coee.ac.uk
www.coree.ac.uk
www.coere.ac.uk
www.code.ac.uk
www.corde.ac.uk
www.codre.ac.uk
www.cofe.ac.uk
www.corfe.ac.uk
www.cofre.ac.uk
www.cote.ac.uk
www.corte.ac.uk
www.cotre.ac.uk
www.cor.ac.uk
www.corw.ac.uk
www.corew.ac.uk
www.corwe.ac.uk
www.cors.ac.uk
www.cores.ac.uk
www.corse.ac.uk
www.cord.ac.uk
www.cored.ac.uk
www.corr.ac.uk
www.corer.ac.uk
www.corre.ac.uk

core.ac.uk 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.

core.ac.uk 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.