AWStats logfile analyzer 6.7 Documentation


Log analyzers Comparisons

Comparison between AWStats and other famous statistics tools

Version - Date6.5 - December 20056.0 - December 20042.01-10 - April 2002NA
LanguagePerlCCEmbedded HTML tag
Available on all platformsYesYesYesNA
Sources availableYesYesYesNo
Price/LicenceFree/GPLFree/GPLFree/GPLFree with adverts/Proprietary
Works with Apache combined (XLF/ELF)YesYesYesNA
Works with Apache common (CLF) log formatJust some featuresJust some featuresJust some featuresNA
Works with IIS (W3C) log formatYesYesNeed a patchNA
Works with personalized log formatYesYesNoNA
Analyze Web/Ftp/Mail log filesYes/Yes/YesYes/No/NoYes/No/NoNA/No/No
Update of statistics fromcommand line (CLI) and/or
a browser (CGI)
command line (CLI) and/or
a browser (CGI)
command lineNA
Internal reverse DNS lookupYesYesYesNA
DNS cache fileStatic and dynamicStatic or dynamicStatic or dynamicNA
Process logs spitted by load balancing systemsYesYesNoNo
Report number of "human" visitsYesNoYesYes
Report unique "human" visitorsYesNoNoYes
Report session durationYesNoNoYes
Not ordered records tolerance and reorder for visitsYesVisits not supportedNo?
Statistics for visits are based onPages *****Not supportedPages *****Pages *****
Statistics for unique visitors are based onPages *****Not supportedNot supportedPages *****
Report countriesFrom IP location
or domain name
Domain nameDomain name?
Report regions (US and Canada states)Need Maxmind Regions databaseNoNoNo
Report cities and major countries regionsNeed Maxmind Cities databaseNoNoNo
Report ISPNeed Maxmind ISP databaseNoNoNo
Report Organizations nameNeed Maxmind Organizations databaseNoNoNo
Report hostsYesYesYesYes
Report WhoIs informations on hostsYesNoNoNo
Report authenticated usersYesYesNoNo
Report/Filter robots (nb detected)Yes/Yes (403**)Yes / Yes (8**)No/NoNo/No
Report/Filter worms (nb of families detected)Yes/Yes (5)No / NoNo/NoNo/No
Report rush hoursYesYesYesYes
Report days of weekYesYesYesYes
Report most often viewed pagesYes
Report entry pagesYes
Report exit pagesYes
Not ordered records tolerance and reorder for entry/exit pagesYesEntry/Exit not supportedNo?
Detection of CGI pages as pages (and not just hits)YesOnly if prog ends by a defined valueOnly if prog ends by a defined valueYes
Report pages by directoryNoYesNoNo
Report pages with last access time/average sizeYes/YesYes/NoNo/NoNo/No
Dynamic filter on hosts/pages/referers reportYes/Yes/YesNo/No/NoNo/No/NoNo/No/No
Report web compression statistics (mod_gzip,mod_deflate)YesNoNoNo
Report file typesYesYesNoNo
Report by file sizeNoYesNoNo
Report OS (nb detected)Yes (46)Yes (29)No (0)?
Report browsers (nb detected)Yes (121*)Yes (9*)Yes (4*)Yes (<20*)
Report details of browsers versionsMajor and minor versionsMajor versions by default,
minor with SUBBROW option
Major an minor versionsMajor and minor versions
Report screen sizesYesNoNoYes
Report tech supported by browser for Java/Flash/PDFYes/Yes/YesNo/No/NoNo/No/NoNo/No/No
Report audio format supported by browser for Real/QuickTime/MediaplayerYes/Yes/YesNo/No/NoNo/No/NoNo/No/No
Report search engines used (nb detected)Yes (122***)Yes (24)No (0)Yes (<20 ***)
Report keywords/keyphrases used on search engines (nb detected)Yes/Yes (118***)Yes/No (29***)No/Yes (14***)Yes/No (<20***)
Report external refering web page with/without queryYes/YesNo/NoNo/YesYes/No
Report HTTP ErrorsYes
Report 404 ErrorsNb + List last date/referer
Nb onlyNb onlyNo
Report 'Add to favorites' statisticsYes
Other personalized reports for
miscellanous/marketing purpose
Daily statistics YesYesYesYes
Monthly statistics YesYesYesYes
Yearly statistics YesYesYesYes
Benchmark with no DNS lookup in lines/seconds
(full features enabled, with XLF format, cygwin Perl 5.8, Athlon 1Ghz)
No program to run
Benchmark with DNS lookup in lines/seconds
(full features enabled, with XLF format, cygwin Perl 5.8, Athlon 1Ghz)
No program to run
Analyzed data save format (to use with third tools)Structured text file or XMLText files with OUTPUT optionFlat text fileNot possible
Export statistics to PDFExperimentalNoNoNo
Graphical statistics in one page / several / or framesYes/Yes/YesYes/No/NoYes/Yes/NoNo/Yes/Yes

* This number is not really the number of browsers detected. All browsers (known and unknown) can be detected by products that support user agent listing (AWStats,Analog,Webalizer,HitBox). The 'browser detection feature' and number is the number of known browsers for which different versions/ids of same browser are grouped by default in one browser name.

** AWStats can detect robots visits: All robots among the most common are detected, list is in robotslist.txt (250Kb). Products that are not able to do this give you false information, above all if your site has few visitors. For example, if you're site was submitted to all famous search engines, robots can make 500 visits a month, to find updates or to see if your site is still online. So, if you have only 2000 visits a month, products with no robot detection capabilities will report 2500 visits (A 25% error !). AWStats will report 500 visits from robots and 2000 visits from human visitors.

*** AWStats has url syntax rules for the most popular search engines (that's the 'number detected'). Those rules are updated with AWStats updates. But AWStats has also an algorithm to detect keywords of unknown search engines with unknown url syntax rules.

**** Most log analyzers have poor (or not at all) robots, search engines, os or browsers detection capabilities and less features (no or poor visits count, no filter rules, etc...).
It is not possible to add all AWStats features to other log analyzers, so don't forget that benchmarks results are for 'different features'. For this benchmark, I did just complete Webalizer and Analog robots or search engines databases with part of AWStats database. So Webalizer config file was completed with this file, Analog config file was completed with this file. Note that without this very light add (using default conf file), Webalizer speed is 3 times faster, Analog is 15% faster).
Benchmark was made on a combined (XLF/CLF) log record on an Athlon 1GHz.
You must keep in mind that all this times are without reverse DNS lookup. DNS lookup speed depends on your system, network and Internet but not on the log analyzer you use. For this reason, DNS lookup is disabled in all log analyzer benchmarks. Don't forget that DNS lookup is 95% (even with a lookup cache) of the time used by a log analyzer, so if your host is not already resolved in log file and DNS lookup is enable, the total time of the process will be nearly the same whatever is the speed of the log analyzer.

***** Some visitors use a lot of proxy servers to surf (ie: AOL users), this means it's possible that several hosts (with several IP addresses) are used to reach your site for only one visitor (ie: one proxy server download the page and 2 other servers download all images). Because of this, if stats of unique visitors are made on "Hits", 3 users are reported but it's wrong. So AWStats, like HitBox, considers only HTML pages to count unique visitors. This decrease the error (not totally, because it's always possible that a proxy server download one HTML frame and another one download another frame).