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UTM Codes to Measure Web Campaigns

  • webtech

When we run online marketing campaigns, we have to measure the performance of each campaign, so to be able to calculate the conversion rates and customer acquisition costs. Web traffic which is coming from various communication channels can be measured with tools like Google Analytics, Piwik, Mixpanel and using the UTM codes. Almost in all campaigns we use links in text ads, banners, emails newsletters an example is the following link, which is a just simple link that points to a registration page.

https://vontikakis.com/company/create

to use the UTM codes we have ...

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Elastic Search and Lucene

  • webtech

Elasticsearch is search engine server where you can index your records and make a very effect search and ranking, when use millions of records. Elastic search use as base, a java project called Apache Lucene, elastic team build a REST api where you can use all the features of Lucene by making simple http request with data in json format.

So the logic is simple, initially you have to create a index on elastic server and after that you have to store data that you want be searchable, for example in a eshop you could store the title and description of all products. Then make an ...

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PHP Database Migrations

  • webtech

When a software project is in the development phase or during maintenance, sometimes is required to make changes in schema of the database such as add a new table, or column etc. We need to keep track to all these changes, to do this we use the technique of database migration which is a versioning of the database schema similar to source code. This is very useful because if you are part of a team, the other members can take quickly the changes without reloading data, or if a project is in production you can easily rollback if something goes wrong. Many php framework such as yii2, ...

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