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Question What is rate limiting and how can I enable it in Composr?
Answer Rate limiting prevents server overload by restricting the number of requests allowed from a single IP address within a specific timeframe. To enable Composr's built-in rate limiting, add the following to your _config.php file:

Code (PHP)

$SITE_INFO['rate_limiting'] = '1';
$SITE_INFO['rate_limit_time_window'] = '10';
$SITE_INFO['rate_limit_hits_per_window'] = '5';
 

This configuration limits each IP to 5 requests every 10 seconds. This feature generates soft errors early in the process before Composr fully loads.
Question How can I reduce disk activity to improve performance?
Answer If your hard disk is slow, you can implement the following settings in your _config.php file to minimize disk access:
  • $SITE_INFO['disable_smart_decaching'] = '1';
  • $SITE_INFO['no_disk_sanity_checks'] = '1';
  • $SITE_INFO['hardcode_common_module_zones'] = '1';
  • $SITE_INFO['prefer_direct_code_call'] = '1';
  • $SITE_INFO['charset'] = 'utf-8';
  • $SITE_INFO['known_suexec'] = '1';
  • $SITE_INFO['dev_mode'] = '0';
  • $SITE_INFO['no_extra_logs'] = '1';
  • $SITE_INFO['no_extra_bots'] = '1';
  • $SITE_INFO['no_extra_closed_file'] = '1';
  • $SITE_INFO['no_installer_checks'] = '1';
  • $SITE_INFO['assume_full_mobile_support'] = '1';
  • $SITE_INFO['no_extra_mobiles'] = '1';

Note: These settings override default behaviors and may have unintended consequences. Use with caution.
Question What is static caching and how do I enable it?
Answer Static caching drastically improves performance by serving pre-generated pages to bots and guests. This works because these users typically don't require dynamic content. To enable it:
  • Go to the Installation Options editor (yourbaseurl/config_editor.php). You will need your maintenance password.
  • Activate the static cache option.

Composr intelligently determines what to cache, and you can further control this via options within the Installation Options. Be aware that enabling static caching may disable eCommerce features for guests unless specifically configured.
Question What are Composr caches and how do they improve website performance?
Answer Composr utilizes various types of caches to enhance performance by storing pre-calculated results and reducing repetitive tasks. These caches include:
  • Language cache: Eliminates the need to parse language files on each page load.
  • Template cache: Avoids reparsing template files repeatedly.
  • Comcode page cache & Comcode cache: Reduces the need to parse Comcode pages and general Comcode usage.
  • Block cache: Caches blocks based on their parameters, minimizing execution.
  • Theme image cache: Prevents redundant searches for theme images.
  • Values caches: Stores calculated values like member post counts.
  • Persistent cache: Keeps frequently used data in memory for faster access.
  • Advanced admin cache: Allows admins to view cached pages while the server generates updates.
  • Static cache: Serves static pages to bots and guests, bypassing much of the framework.
  • Self learning cache: Optimizes resource loading by learning which resources each page requires.
Question How can I troubleshoot notification problems?
Answer If you're having issues with notifications, here are some troubleshooting steps:
  • Check Email Logs: View the email log (Admin Zone > Audit > E-mail queue/log) to see what notifications have been sent.
  • Use the SU Feature: Impersonate a member using the SU feature (described in the "Testing access and privileges" tutorial) to view their notification settings and confirm they are set up correctly.
  • Enable Carbon-copy Email: Configure a "Carbon-copy e-mail address" in the configuration settings to receive copies of all outgoing emails, including notifications. This helps you monitor email delivery.
  • Verify System Scheduler: Ensure the system scheduler is configured correctly if members are not receiving digest emails.
  • Check Digest Settings: Confirm that "Enable digest notifications" is enabled in the Messages configuration settings.
  • Review "Safety listing limit": If a notification has too many categories, members might not see the full selection tree. Adjust the "Safety listing limit" in the configuration settings if necessary.
Question Can I control which notifications members receive?
Answer Yes, you can control notification settings through two mechanisms:
  • Notification Defaults: You can set default notification preferences for all members. You can enable or disable specific notifications and choose the delivery method (Admin Zone > Setup > Notification defaults).
  • Notification Lock-down: You can force members to receive or prevent them from receiving certain notifications (Admin Zone > Setup > Notification lock-down). This allows you to enforce specific notification policies and manage email volume.
Question What notification options are available to members?
Answer Members can choose from a wide range of notifications, including:
  • Content Updates: Notifications for new or updated content, such as news articles, forum posts, and gallery images.
  • Private Messages: Alerts for new private messages received.
  • Friend Requests: Notifications for new friend requests.
  • Administrative Actions: Alerts for actions taken by site administrators, such as account approvals or content moderation decisions.

Members can choose to receive notifications via:
  • Email: Notifications sent directly to their email address.
  • Digest Email: Combined summaries of activity sent in batched emails. This requires the system scheduler and the digest e-mails configuration option to be enabled.
  • Private Topics: Notifications delivered as private forum topics.
  • SMS: Notifications sent as text messages (requires configuration and incurs costs).
  • Web Notifications: Real-time alerts displayed within the Composr interface.
Question Can I share content like news and banners across the M.S.N.?
Answer Yes, you can share news by placing it on the central site and using RSS blocks on satellite sites to display it. Banners can be shared by adding them to the central site and configuring satellite sites to use the central site's banner.php script.
Question What should I consider when managing usergroups for subcommunities?
Answer
  • Rank ladders: Use the default rank ladder for main site ranks and secondary usergroups for subcommunity memberships.
  • New member status: Set default usergroups for new members to grant them initial access while allowing removal if necessary.
  • Leadership: Assign leaders to usergroups to allow members to manage subcommunities.
  • Clubs: Consider using Clubs for member-driven subcommunities with their own forums.
Question What are Composr Clubs and how are they useful for subcommunities?
Answer Clubs are special usergroups in Conversr (Composr's forum system) designed for creating subcommunities. They come with their own dedicated forums and are managed by members, taking pressure off site staff.

Key features:
  • No special permissions by default, simplifying permission management.
  • Members can join and leave like regular usergroups.
  • Provide a dedicated forum for the club.

Top 10 Entries

Question How does Composr handle color contrast for accessibility?
Answer Composr is designed with high graphic standards that aim to avoid poor color contrast in the default theme and Theme Wizard. But it is not perfect, especially for dark mode themes.
Webmasters are still responsible for ensuring sufficient contrast in their own content and in custom themes.
Question How do I provide text equivalents for images and multimedia in Composr?
Answer Composr's web standards checker ensures that alternative text (using the "alt" attribute) is provided for images. It will warn if any images do not contain alt text.
For multimedia, webmasters are responsible for providing captions and auditory descriptions either in the multimedia itself, on the description of the media, or uploaded as a caption file.
Question How can I make sure my Composr website is accessible?
Answer Enable the web standards checker in Composr while editing templates. Also do the same when previewing edited or new Comcode pages.
Use the provided accessibility options in the Admin Zone to customize the webmaster experience according to your accessibility needs.
Follow the webmaster concerns outlined in the "Helping improve site accessibility for disabled users" tutorial.
Regularly test your website using third-party accessibility validation tools such as the WAVE Web Accessibility Evaluation Tool or the AChecker.
Question What accessibility features are built into Composr?
Answer Composr has an inbuilt web standards checker that helps ensure compliance with accessibility guidelines.
Composr provides automatic sitemap generation functionality, a default sitemap page, and an advanced menu editor to manage navigation.
Composr supports ARIA (Accessible Rich Internet Applications), which helps make dynamic content accessible.
Composr includes options in the Admin Zone to fine-tune the webmaster experience for specific accessibility requirements.
Question Does Composr comply with accessibility standards?
Answer - Yes, Composr complies with the highest level of the WCAG (version 1.0 at the time of writing), level 3.
- Composr also meets Section 508 guidelines, XHTML and CSS specifications, and the highest level of ATAG.
- Composr conforms to these standards throughout, from user-facing screens to administrator interfaces.
Name Patrick Schmalstig
Photograph Image
Title / Role Lead Developer
Contributions / Notes

Joined Chris Graham behind the scenes in the development of Composr CMS in 2016.

Took on the lead developer role in 2023 when Chris Graham stepped back to attend to his new lifestyle changes.

Spearheaded the development of Composr CMS v11 and the new website, Composr.app.

Formed the company PDStig, LLC to take on professional support and development for Composr CMS users especially after the discontinuation of ocProducts, Ltd.

Links

PDStig, LLC

Name Jim Davidson
Title / Role contributor
Contributions / Notes

written many tutorials via Arvixe

Name Chris Warburton
Title / Role developer for ocProducts
Contributions / Notes

Made some key contributions to ocPortal

Name Haydn Maidment
Title / Role project manager for ocProducts
Contributions / Notes

None available

Name Steve Jarvis
Title / Role project manager for ocProducts
Contributions / Notes

Wrote many tutorials via Arvixe