Manual to understand the statistics generated by Webalizer

Preliminar Concepts:


An access is defined like a request to the WEB server. Namely, each time a browser requieres a HTML page, the execution of an application or a search on the Databases of a an image or PDF files is realizing an access. The number of access represents the total of requirements on the server, on which it has had a response during the specified period of report.


Every time that an access involves to send a file to the client, this is posted. For an example, an access to an HTML file involves the sending of it to the client, but if this HTML contains images this have to be also send like files to the client.


The number of pages is defined like the number of files that are considered WEB pages (.php, .html, .htm, ...) sent to the client.


The clients are the number of different IP directions that have done requirements to the site in the reported period.

This number represents the number of computers that have joined the site. If a person connects through two different computers, this access counts like two different, in the same way if some persons uses one computer with an IP direction counts all the access like one.


The requirements done to the WEB server from the same IP direction that apart more than 30 minutes are counted like one visit.

If one client requires one page at 8:00a.m. and requests pages all the time until 9:00a.m., all his activity counts like one visit, but if he requests it again at 10a.m. this counts like a new visit.

Given the protocol TCP/IP characteristics this data can not be considered exact.

KBytes (of data)

This data represents the quantity of data measured in Kilobytes (Kbytes) sent by the server in the report period.

This number represents the quantity of traffic that generates the server when it attends the requirements of the clients.

The precision of this fact depends directly of the WEB server.

The input and output page

The input pages are defined like the first page visited by one client and the output page are defined like the last visited page before the client goes out of the site.

If one client enters your website the last page he visits is /folder/page2.php, then the index.html counts like a input page and page2.php like an output page.

Response code(HTML)

When one access is produced, the server generates a code that classifies the given response, the codes are a standard HTML protocol. This responses indicates, for an example, if the given page was effectively delivered, or it was not found or couldn't access to it for lacks of permits to observe.

Principal Page

In the principal statics page is observed a resumed summary of the last 12 months. This summary contains one row for each of the months, the columns are grouped in two sections: one contains the diary averages of access, files, pages and visits. The other section contains the monthly averages of clients, transferred KBytes, visits, pages, files and access.

Every month contains one link to the detailed statics for this period.

Details page

The first information that we can observe describes the period that includes this report and the date that it was generated.

Monthly statics

This is a table that contains a total from the generation date of the document of access, files, pages, visits, KBytes, clients and URLs.

It also contains the average and the maximum of access grouped bu Hour, access grouped by day, files grouped by day, pages grouped by day, visits grouped by day, KBytes grouped day.

Graph of daily use

This graph contains 3 histograms, with the days of the month in horizontal line.

The first histogram groups the count of pages, files and access. The second histogram groups the count of clients and visits. The third histogram displays the count of traffic in KBytes from the site.

Daily Statistics for the month

It is a table with one row for each day of the month in which it has been made statics and a column for the access, files, visited pages, clients and KBytes. Each one have the absolute number and the relative total percentage of the days of the statistics.

Hourly graphical use

This is an histogram with the hours of the day in an horizontal line and in the vertical the monthly average by hour of pages, files and access.

Hourly statics

This is a table that contains one row for hour and one column for the count of access, files, pages and KBytes. Each one of this have an hourly average, an absolute number and his equivalent in average over the entire day.

First URL

Contains one row with the first 30 visited URL sorted by access, the next table contains the first 10 URL sorted by the traffic in KBytes.

Input and output of the site.

This tables contains the 10 first most used URLs like input and output pages respectively.


Contains the information of the access, files, KBytes and visits produced bu the clients. This table contain only the first 30 clients sorted by access.

The next table contains the same information of the first 10 clients sorted by the use of the site, measured in KBytes.

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