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Analog 4.15: Analog's reports


This section summarises all of analog's reports, and the main commands which control them.

Top lines


Program started at Thu-24-Sep-1998 13:48.
Analysed requests from Wed-16-Sep-1998 09:52 to Mon-21-Sep-1998 02:04 (4.7 days).
The top two lines of the output tell you when the program was run, and which dates it includes data from. (The second line includes all non-excluded requests, even failures, whereas most reports only include successful requests.)

General Summary


(Figures in parentheses refer to the 7 days to 24-Sep-1998 13:48).
Successful requests: 79,646 (48,947)
Average successful requests per day: 17,036 (6,992)
Successful requests for pages: 31,138 (18,689)
Average successful requests for pages per day: 6,660 (2,669)
Failed requests: 9,008 (6,378)
Redirected requests: 344 (235)
Distinct files requested: 8,180 (2,884)
Distinct hosts served: 6,640 (4,991)
Corrupt logfile lines: 2
Data transferred: 976.92 Mbytes (627.06 Mbytes)
Average data transferred per day: 208.96 Mbytes (89.58 Mbytes)
The General Summary contains some overall statistics about the data being analysed: the most important being the number of requests (the total number of files downloaded, including graphics); the number of requests for pages (just counting the various pages on your site); the number of distinct hosts (the number of different computers requests have come from); and the amount of data transferred in bytes. For exactly what the various lines mean, see the section on Analog's definitions. Bear in mind that one user can generate many requests by viewing lots of different pages or images, or by viewing the same page many times.

The figures in parentheses represent the seven days given at the top of this report: it's the seven days before the TO time if there was a TO command, or if not the seven days before the program was run.

You can't find out the number of visitors or visits you've had, and don't believe any program which tells you that you can. See the section on How the web works for a discussion of this.

You can turn this report on or off with the GENERAL command. You can control which lines are included using the GENSUMLINES command. You can include or exclude the figures for the last seven days with the LASTSEVEN command. You may get slightly different lines to those above, depending on exactly what's in your logfile.

Time reports


Each unit (+) represents 800 requests for pages, or part thereof.
week beg.: #reqs: pages: 
---------: -----: -----: 
13/Sep/98: 69614: 25277: ++++++++++++++++++++++++++++++++
20/Sep/98: 10032:  5861: ++++++++
Busiest week: week beginning 13/Sep/98 (26,654 requests for pages).
These reports tell you how many requests there were in each time period. They also tell you which was the busiest time period.

The timezone is whatever your server records time in -- usually your server's local time, or sometimes GMT. You can adjust it to another timezone with the LOGTIMEOFFSET command.

You can control whether each report is included or not with the appropriate ON or OFF command. You can control which columns are listed by the COLS commands. You can control which measurement to use for the bar charts and the "busiest" line by the GRAPH commands. You can determine how many rows are displayed with the ROWS commands. You can display the lines backwards or forwards in time by the BACK commands. You can change the graphic used for the bar charts with the BARSTYLE command.

Time summaries


Each unit (+) represents 150 requests for pages, or part thereof.
day: #reqs: pages: 
---: -----: -----: 
Sun:  2031:  1193: ++++++++

Mon:  8001:  4668: ++++++++++++++++++++++++++++++++
Tue:     0:     0: 
Wed: 13934:  5915: ++++++++++++++++++++++++++++++++++++++++
[etc.]

These reports tell you the total number of requests in each day or hour of the week, or in each period of the day, summed over all the weeks or days in the report. (It's not the average, nor is it the figures for just the last week or last day).

You can control whether each report is included or not with the appropriate ON or OFF command. You can control which columns are listed by the COLS commands. You can control which measurement to use for the bar charts by the GRAPH commands. You can change the graphic used for the bar charts with the BARSTYLE command.

Other reports


Listing the first 5 files by the number of requests, sorted by the number of requests.
#reqs: %bytes:       last date: file
-----: ------: ---------------: ----
 4123:  2.29%: 21/Sep/98 01:57: /~sret1/analog/
 3064:  0.15%: 21/Sep/98 01:54: /~sret1/analog/analogo.gif
 1737:  0.01%: 21/Sep/98 01:53: /~sret1/images/bar1.gif
 1692:  0.01%: 21/Sep/98 01:53: /~sret1/images/bar16.gif
 1685:  0.01%: 21/Sep/98 01:53: /~sret1/images/bar8.gif
67345: 97.54%: 21/Sep/98 02:04: [not listed: 8,175 files]

The rest of the reports are all quite similar. Here is a list of them. If you're unfamiliar with some of the terms, see the section on Analog's definitions.
  • The Host Report lists all computers which downloaded files from you.
  • The Domain Report lists which countries those computers came from. (If you only get "unresolved numerical addresses", see the FAQ.)
  • The Organisation Report attempts to list the organisations (companies, institutions, ISPs etc.) which the computer was registered under.
  • The Host Redirection Report and Host Failure Report list all computers which encountered redirections or errors.
  • The Request Report (the example above) lists which files were downloaded.
  • The Directory Report lists which directories those files came from.
  • The File Type Report lists the file types (actually, extensions) of those files.
  • The File Size Report breaks them down by size.
  • The Processing Time Report shows the time taken to serve each file.
  • The Redirection Report lists the filenames which resulted in redirections: mainly directories without the final slash, and "click-thru"'s.
  • The Failure Report lists the filenames which caused errors.
  • The Referrer Report lists which pages linked to your files (and also pages which included your images).
  • The Referring Site Report lists the servers those referrers were on.
  • The Search Query Report and the Search Word Report list which search terms people used to find your site (provided you've used the appropriate SEARCHENGINE commands).
  • The Internal Search Query Report and Internal Search Word Report list the search terms people used on scripts within your site (provided you've used the appropriate INTSEARCHENGINE commands).
  • The Redirected Referrer Report lists the referrers which led to redirections.
  • The Failed Referrer Report is essentially a broken link report.
  • The Browser Report lists the detailed versions of browsers used, and the Browser Summary collects them by vendor. You should be aware that browsers can lie about what sort of browser they are.
  • The Operating System Report lists the operating systems of the visitors whose browser types you know (as far as possible: it's not always possible to distinguish accurately between different Windows versions, for example, because the same browser can run on more than one Windows version). Which browsers count as robots is controlled by the ROBOTINCLUDE and ROBOTEXCLUDE commands.
  • The Virtual Host Report lists the activity of your various virtual domains.
  • The Virtual Host Redirection Report and Virtual Host Failure Report give the number of redirections and errors on each of those domains.
  • The User Report lists your visitors if your server requires authentication, or perhaps the visitors' cookies.
  • The User Redirection Report and User Failure Report list the users who encountered redirections or errors.
  • The Status Code Report lists the number of each HTTP status code that you had.
Usually you can only get some of these reports, depending on what information is recorded in your logfile.

There are lots of commands which control these reports. As usual, you can control whether each report is included or not with the appropriate ON or OFF command. You can control which columns are listed with the COLS commands. You can change how the reports are sorted with the SORTBY commands. You can control how many items are listed with the FLOOR commands. You can control whether and how the pie charts are plotted with the CHART commands. You can list the time period covered by each report with the REPORTSPAN command. You can include or exclude individual items with the output INCLUDE and EXCLUDE commands. You can change the names of items in the reports with the output alias commands. Which files are linked to in the reports is controlled by the LINKINCLUDE and LINKEXCLUDE commands. The links are also affected by the BASEURL command.

The "not listed" line at the bottom counts those items which didn't get enough traffic to get above the FLOOR for the report. (It doesn't include items which you've explicitly excluded.)

Most of these reports have a hierarchical structure, like this example for the Domain Report:


Listing the first 5 domains by the number of requests, sorted by the number of requests.
no.: #reqs: %bytes: domain
---: -----: ------: ------
  1: 13243: 16.23%: .com (Commercial)
   :  1262:  1.26%:   aol.com
  2: 11783: 25.64%: .jp (Japan)
   :  9592: 22.19%:   ad.jp
   :  1043:  1.97%:   co.jp
  3: 10073: 11.62%: .net (Network)
   :  1926:  1.71%:   uu.net
  4:  9657: 13.31%: [unresolved numerical addresses]
  5:  7388:  8.04%: .uk (United Kingdom)
   :  5792:  5.74%:   ac.uk
   :  1510:  1.99%:   co.uk
   : 18502: 25.16%: [not listed: 82 domains]

Notice that the lower levels are always listed with their parents, so they break up the sort order. Also, they don't count towards the total number of items listed, so there are only 5 domains listed in the example above, as you can see in the first column. (The N column is particularly useful in hierarchical reports for this reason.)

You can control which items are listed on the lower levels by the SUB family of commands. There are also separate sub-SORTBY and sub-FLOOR commands for the lower levels. (These commands are called ARGSSORTBY and ARGSFLOOR for some reports, such as the Request Report.) You can plot the lower levels instead of the top-level items on the pie charts using the CHARTEXPAND commands.

Bottom lines


This analysis was produced by analog 5.32.
Running time: 8 seconds.

At the end of the output you can see which version of analog produced the report, and how long it took.

Parker Information Resources
Houston, Texas
E-mail: bparker@parkerinfo.com

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