| https://www.creative-tim.com/bootstrap-cheat-sheet/ | — | frontendtoolsbootstrap | 1060 | |
| https://www.creare.co.uk/blog/seo-advice/http-vs-https-duplicate-content | — | seo | 3647 | |
| https://www.coursera.org/ | — | coursestutorials | 684 | |
| https://www.conetix.com.au/blog/namespaces-laravel-applications | — | laravelphp | 1111 | |
| https://www.conetix.com.au/blog/laravel-form-refactoring-service-layers | — | laravelphp | 612 | |
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| https://www.codewars.com/ | — | miscellaneous | 691 | |
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| https://www.codeschool.com/screencasts/mongodb-part-1 | — | backendcoursesdatabase | 499 | |
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| https://www.codementor.io/learn/office-hours | — | tutorialslearn | 1302 | |
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| https://www.codeigniter.com/user_guide/ | — | codeigniterphp | 583 | |
| https://www.codecademy.com/learn/learn-angularjs | — | angularjstutorialslearnangular | 1567 | |
| https://www.codecademy.com/learn | — | tutorialslearn | 821 | |
| https://www.cms2cms.com/ | — | miscellaneous | 584 | |
| https://www.cloudways.com/blog/introduction-php-data-objects/ | — | php | 2616 | |
| https://www.cloudways.com/blog/create-rest-api-silex/ | — | backend | 1041 | |
| https://www.cloudways.com/blog/build-laravel-powered-slack-bot/ | — | laravelphp | 696 | |
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