LEDAS Usage Statistics
On this page we present usage statistics for the WWW services hosted at LEDAS.
These statistics are generated automatically once per day, and a cursory attempt
has been made to filter the data for hits by web robots. At best, these figures
are likely to be accurate to +-10%. Also note that this does not include FTP downloads,
which contribute 0.5-0.7GB/month. If you require definitive statistics, please
contact ledas-help@star.le.ac.uk. Access
statistics for WWW.LEDAS.AC.UK WWW.LEDAS.AC.UK is the server providing
the bulk of LEDAS' services, including ARNIE5, BLASTA and the Digitised Sky Survey
image service. The graph below shows server accesses by month.  Access
statistics for CHANDRA.LEDAS.AC.UK CHANDRA.LEDAS.AC.UK is the server
providing the web mirror of the Chandra Science website. The graph below shows
server accesses by month. 
| Key
to usage graphs: | | Hits | a
"hit" represents a single entry in the web log file. This may include
failed requests (errors) and header requests by automated web spidering software. |
| Files: | number
of files successfully requested. HTML files and images are counted separately. |
| Pages: | number
of distinct HTML pages successfully requested. | | Visits: | number
of distinct "sessions" by individual users, in which a user may request
multiple pages. | | Sites: | number
of different sites requesting data | | KBytes: | total
volume of data successully transferred. |
|
