NotFoundParamAlert is MODx Revolution plugin which generate alert on page not found with specified parameters in URL. It is possible to select a range of URL parameters through using wildcards. The user can be notified through MODx logging system or email.

Useful to catch wrong URLs on large context advertising projects with UTM or other URL parameters. For example, to catch all not found pages with UTM and OpenStat parameters you can use the follow construction: utm_*,_openstat.
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After installation use System settings notfoundparamalert namespace to set preferable settings values.

Available system settings (namespace notfoundparamalert):
parameters – list of URL parameters, separated by coma, which will generate alert. Available simple wildcards:? — one any symbol, * — group of symbols.
parameters_all – include in alert message all URL parameters or only matching parameters.
alert_method – alert method. Available values: «mail» – send alert message on email, «log» – log alert message.
alert_log_level – alert logging log level. Available values: «error», «warn», «info», «debug».
mail_method – send mail method. Available values: «php» – native php mail() function, «modx» – MODX mailer.
mail_from – valid email from which alert messages will be send.
mail_to – valid email where alert messages will be send.

In Lexicon notfoundparamalert namespace it is possible to set up your own template for log/email message.

Available placeholders used in message/mail text:
alertName — component name.
alertMethod — alert method.
siteName — site name ('site_name').
siteUrl — site url ('site_url').
urlPath — page relative URL.
urlFull — page absolute URL.
requestParams — matched URL parameters.
ipAddress — IP address the page was requested.

Feel free to suggest ideas/improvements/bugs on GitHub: github.com/kudashevs/NotFoundParamAlert/issues