Web Watch: A Survey Of Numbers of UK University Web Servers

How many web servers are there in the UK Higher Education community? Brian Kelly provides some answers.

How many web servers are there in use within the UK higher education community? What is the profile of server usage within the community - do most institutions take a distributed approach, running many servers, or is a centralised approach more popular? A WebWatch survey has been carried out recently in an attempt to answer these questions.

The Tools Available

Netcraft [1] is a company based in Bath which carries out surveys of Web server software. The Netcraft survey is very comprehensive, with the survey in May 2000 successfully polling over 15 million sites. Netcraft publish monthly reports on their surveys [2].

Netcraft also provide an interface which enables details of the Web server used at a site to be obtained. The service also provides a search facility which can be used to list the Web servers used within a domain (or part of a domain). This facility can be used to, for example, list the Web servers which have .microsoft in the domain name.

The Netcraft interface is shown in Figure 1.

Figure 1: Netcraft interface
Figure 1: Netcraft interface

This service has been used to analyse Web servers used in UK Universities. The results are provided in Appendix 1 of this article.

Why Carry This Survey?

The aim of the survey is to profile the server usage within the UK HE community and to detect interesting trends. Knowledge of the server usage within the community has a number of possible benefits: for example, knowledge of server profiles will help developers of robot software, especially robots which are targeted at the HE / public sector communities.

Caveats

A number of caveats to this survey should be noted:

  • Web servers which are not publicly available, such as Intranets, will not be reported.
  • Duplicate names for Web servers may be included in the reports.
  • The report does not differentiate between real and virtual servers.
  • The survey is reliant on the quality of the data obtained from Netcraft.
  • Due to DNS and other configuration settings it is not possible to access all Web sites.

Summary of Findings

The total number of Web servers found on 1 May 2000 was 3,986. Excluding institutions for which Netcraft reported 0 Web servers, an average of 19.4 servers per institution was found.

The survey was repeated on 5 June 2000. The total number of Web servers had reduced to 3,773, with an average of 24.2 servers per institution.

A histogram of the results is shown in Figure 2.

Figure 2: Histogram of Results
Figure 2: Histogram of Results

As can be seen, most institutions have a small number of publically-accessible Web servers, with 79 institutions running between 1 and 9 servers and only 9 running more than 100.

References

  1. Netcraft,
    http://www.netcraft.com/
  2. Web Server Survey, Netcraft
    http://www.netcraft.com/survey/

Appendix 1: Survey Results

The Netcraft service was used to count the number of web servers used by UK Universities. The survey was carried out on 1 May 2000 and repeated on 5 June 2000.

The following table contains details of the survey. Column 1 gives the name of the institution and a link to the institutional web server. Column 2 gives the number of web server found within the university's domain.

Note the following limitations in the survey:

Domain Name Variants
The survey will not detect unusual domain names variants used within an institution: e.g. a link from www.lse-maths.ac.uk will be included in the numbers of servers in the domain lse.ac.uk.
Short and Link Domain Names
Institutions which make use of a long and short form of their domain name (e.g. www.bham.ac.uk and www.birmingham.ac.uk) will have misleading results.
IP Numbers
Servers which use an IP number rather than a domain name will not be included.
Netcraft Limitations
The database used by the Netcraft service may be incomplete.

Table 1: Numbers of Web Servers In UK HEIs
Institution No. of Servers
1 May 2000
No. of Servers
5 June 2000
Current No. of Servers
Aberdeen 26 24 Try it
Abertay 7 6 Try it
Aberystwyth 8 9 Try it
Anglia Polytechnic University 43 41 Try it
Aston 22 18 Try it
Bangor 19 20 Try it
Bath Spa 1 1 Try it
Bath 12 9 Try it
Belfast, The Queen's University of 28 33 Try it
Birkbeck 13 12 Try it
Birmingham
NOTE: Used <www.bham.ac.uk> and not <www.birmingham.ac.uk>
66 64 Try it
Bolton Institute of Higher Education 21 17 Try it
Bournemouth University 15 15 Try it
Bradford 47 47 Try it
Bretton College 1 1 Try it
Brighton 33 38 Try it
Bristol 54 48 Try it
Brunel 13 8 Try it
Buckinghamshire Chilterns University College 1 1 Try it
Cambridge 338 318 Try it
Canterbury Christ Church 1 1 Try it
Cardiff
NOTE Used <www.cardiff.ac.uk> and not <www.cf.ac.uk> (which has 9 sites)
2 1 Try it
Cardiff, University of Wales Institute (UWIC) 5 5 Try it
Central England, University of (UCE) 13 12 Try it
Central Lancashire 3 2 Try it
Central School of Speech and Drama 1 1 Try it
Cheltenham and Gloucester College of HE 3 3 Try it
Chester College
Used .chester to avoid confusion with Manchester and Chichester
4 4 Try it
Chichester College 2 2 Try it
City 37 32 Try it
College of Guidance Studies 1 0 Try it
Coventry Not known 27 Try it
Cranfield 21 21 Try it
Dartington College of Arts 1 1 Try it
De Montfort (DMU) 61 57 Try it
Derby 3 3 Try it
Dundee 32 28 Try it
Durham 2 2 Try it
East Anglia, University of (UEA) 20 20 Try it
East London 10 9 Try it
Edge Hill 5 5 Try it
Edinburgh
Used .ed.ac.uk to differentiate from Bized and RCSED
265 259 Try it
Essex 31 30 Try it
Exeter
Used .ex.ac.uk to differentiate from essex
1 12 Try it
Falmouth 1 1 Try it
Glamorgan 14 13 Try it
Glasgow Caledonian University 22 22 Try it
Glasgow School of Art 2 2 Try it
Glasgow 182 174 Try it
Goldsmiths College
NOTE <www.goldsmiths.ac.uk> and not <www.gold.ac.uk> (which has 18 sites)
5 4 Try it
Greenwich 15 13 Try it
Harper Adams 1 1 Try it
Heriot-Watt 35 33 Try it
Hertfordshire 25 23 Try it
Huddersfield 3 2 Try it
Hull 43 42 Try it
Imperial 155 146 Try it
Institute of Education 4 5 Try it
Keele 10 10 Try it
Kent 15 15 Try it
Kent Institute of Art and Design 2 1 Try it
King Alfred's College, Winchester 5 4 Try it
King's College London (KCL) 33 32 Try it
Kingston 3 3 Try it
Lampeter 2 2 Try it
Lancaster 3 2 Try it
Leeds 106 101 Try it
Leeds Metropolitan University (LMU) 3 2 Try it
Leicester
Used .le.ac.uk to differentiate from Newcastle, Bournville, Skelmersdale, Isle and Keele
16 16 Try it
Lincolnshire and Humberside 2 1 Try it
Liverpool 22 23 Try it
Liverpool John Moore 17 15 Try it
Liverpool Hope 1 1 Try it
London Business School 7 5 Try it
London Guildhall 1 1 Try it
London Institute 8 6 Try it
University of London (Institutes) 6 6 Try it
London School of Economics and Political Science (LSE) 19 16 Try it
London School of Hygiene & Tropical Medicine 3 3 Try it
Loughborough
Note <www.lboro.ac.uk> and not <www.lut.ac.uk>
24 22 Try it
Luton 6 8 Try it
Manchester Institute of Science & Technology (UMIST) 66 59 Try it
Manchester Metropolitan University (MMU) 43 41 Try it
Manchester 152 142 Try it
Manchester Business School 1 1 Try it
Medicine, University of Wales College of 2 2 Try it
Middlesex 46 38 Try it
Napier 33 32 Try it
Newcastle 49 41 Try it
Newman 3 3 Try it
Newport 5 5 Try it
North-East Wales Institute of Higher Education (NEWI) 2 2 Try it
North London (UNL) 8 8 Try it
North Riding College Higher Education Corporation 1 1 Try it
Northampton, University College 1 1 Try it
Northern College of Education 10 10 Try it
Northern School of Contemporary Dance 1 1 Try it
University of Northumbria at Newcastle (UNN) 13 14 Try it
Norwich School of Art and Design 1 1 Try it
Nottingham Trent 28 22 Try it
Nottingham 28 27 Try it
Oxford 247 235 Try it
Oxford Brookes 0 0 Try it
Paisley 15 2 Try it
Plymouth 31 28 Try it
Portsmouth
Used .port.ac.uk to differentiate from Newport
32 31 Try it
Queen Margaret University College 1 1 Try it
Queen Mary and Westfield College 69 62 Try it
Ravensbourne College of Design and Communication 1 1 Try it
Reading 89 89 Try it
Ripon and York St John, College of 2 2 Try it
Robert Gordon University 6 4 Try it
Roehampton 3 2 Try it
Rose Bruford College 1 1 Try it
Royal Academy of Music 1 1 Try it
Royal College of Art 16 13 Try it
Royal College of Music 1 1 Try it
Royal Holloway 42 41 Try it
Royal Northern College of Music 4 4 Try it
Royal Scottish Academy of Music and Drama 2 2 Try it
Royal Veterinary College 1 1 Try it
St Andrews 37 38 Try it
St George's Hospital Medical School 8 5 Try it
St Mark and St John, College of 3 3 Try it
St Mary's College 1 1 Try it
Salford 31 31 Try it
School of Oriental and African Studies (SOAS) 1 1 Try it
Scottish Agricultural College 3 3 Try it
Sheffield Hallam University 15 16 Try it
Sheffield 28 25 Try it
South Bank University 19 18 Try it
Southampton 160 162 Try it
Southampton Institute 3 2 Try it
Staffordshire 5 5 Try it
Stirling 30 26 Try it
Strathclyde 49 46 Try it
Sunderland 22 19 Try it
Surrey Institute of Art and Design 2 3 Try it
Surrey 23 21 Try it
Sussex 15 16 Try it
Swansea Institute of Higher Education 1 1 Try it
Swansea 30 26 Try it
Teeside 13 13 Try it
Thames Valley 15 15 Try it
Trinity and All Saints 1 1 Try it
Trinity College of Music 1 1 Try it
Trinity College, Carmarthen 1 1 Try it
Ulster 25 3 Try it
University College London 117 110 Try it
Warwick 41 40 Try it
Welsh College of Music and Drama 1 1 Try it
West of England, University of (UWE) 14 11 Try it
Westhill College 1 1 Try it
Westminster College 0 0 Try it
Westminster 7 7 Try it
Wolverhampton 67 63 Try it
Worcester, University College 0 0 Try it
Writtle College 1 1 Try it
Wye College 0 0 Try it
York 26 22 Try it
Total 3,985 3,773  
Note
Four institutions were reported as having 0 Web servers (Oxford Brookes, Westminster College, Worcester University College and Wye College). This is believed to be due to an error in the data collection. The data for the initial survey of Coventry University was lost.

Table 2 gives a summary of the top 5 web sites with the largest number of web servers as reported by Netcraft.

Table 2: Top 5 UK HEI Web Sites With The Most Number of Web Servers
Institution No. of Web Servers (1 May 2000) No. of Web Servers (5 June 2000) Current Value
Cambridge 338 318 Try it
Edinburgh 248 244 Try it
Oxford 247 235 Try it
Glasgow 182 174 Try it
Southampton 160 162 Try it

Author Details

Picture of Brian KellyBrian Kelly
UK Web Focus
UKOLN
University of Bath
Bath
BA2 7AY

Email: b.kelly@ukoln.ac.uk

Brian Kelly is UK Web Focus. He works for UKOLN, which is based at the University of Bath

 

Date published: 
Friday, 23 June 2000
Copyright statement: 

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