Features: A-Z Index

A

Administration Zone

Administration Zone

B

Banners

Banners

C

Calendar

Calendar

Catalogues

Catalogues

Chatrooms and IM

Chatrooms and IM

Community features

Community features

Content Sharing

Content Sharing

Conversr Forums

Conversr Forums

Conversr Topic Polls

Conversr Topic Polls

D

Design without barriers

Design without barriers

Downloads

Downloads

E

Ease of Use

Ease of Use

eCommerce and Subscriptions

eCommerce and Subscriptions

Extendable

Extendable

F

Featured Content

Featured Content

G

Galleries

Galleries

I

Installation

Installation

Integration

Integration

L

Localisation

Localisation

M

Membership

Membership

N

News and Blogs

News and Blogs

Newsletters

Newsletters

P

Parental Controls

Parental Controls

Performance

Performance

Points

Points

Privacy Tools

Privacy Tools

Q

Quizzes and Surveys

Quizzes and Surveys

R

Rich Media

Rich Media

S

Search Engine Optimisation

Search Engine Optimisation

Searching

Searching

Security

Security

Spam Protection

Spam Protection

Stay on Top

Stay on Top

Structure / Navigation

Structure / Navigation

Support Tickets

Support Tickets

T

Template Programming Language

Template Programming Language

Testing tools

Testing tools

Themeing tools

Themeing tools

Third party integration

Third party integration

W

Warnings / Moderation

Warnings / Moderation

Web Pages

Web Pages

Web standards

Web standards

Website Polls

Website Polls

White-labeling (Debranding)

White-labeling (Debranding)

Wiki+

Wiki+

Newest 10 Entries

Question What is the Admin Zone?
Answer The Admin Zone is a special section of your Composr website that allows authorized staff members to perform various administrative tasks. It serves as the central hub for managing content, configuring settings, monitoring activity, and maintaining the overall health of your website.

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Question What should I avoid doing in Composr to maintain accessibility?
Answer Avoid using Comcode tags or other HTML elements that create dynamic effects in the user's browser, such as ticker and jumping. These can have a negative impact on navigation and scrolling.
Provide alternate information for multimedia you upload so those with auditory impairments can still understand the content.
Avoid creating multiple content items with the same title, as this can lead to accessibility issues and general user confusion.

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Question How does Composr handle forms for accessibility?
Answer The web standards checker ensures that form labels are properly positioned and explicitly associated with their controls.
It also checks that form elements have a logical tab order and are keyboard operable.

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Question How does Composr ensure accessible data tables?
Answer The web standards checker enforces proper markup for data tables, including identifying row and column headers, and associating data cells with header cells.
It ensures that tables are not used for layout (flex boxes and HTML grids are preferred for mobile responsiveness) unless they make sense when linearized.
Composr provides summaries for tables to aid non-visual user agents in understanding their structure and content.

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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.

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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.

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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.

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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.

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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.

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Title Extendable
Icon Image
Description

Versatile: You can strip down to a core system, or build up with 3rd-party addons.

Full API documentation

High coding standards: No PHP notices. Type-strict codebase. MVC framework.

Free online developer's guide book (in the tutorials)

Custom field filters: For example, restrict news posts to a minimum length.

Stack traces for easy debugging

Synchronise data between staging and live sites using Resource-fs

Breadcrumb overrides

Advanced banning: Set your own banning rules for different hack attack codes. Even create your own ban pages (e.g. to mimic law enforcement bans for spammers).

Code overrides: Implement modifications to the Composr code without directly editing the original code by creating _custom files. This makes upgrading much easier. Also supports contentious_overrides hooks and the override_api for more advanced overriding.

Many different hook types allowing for modifying or extending Composr without modifying or overriding the code.

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Top 10 Entries

Question What are cleanup tools in Composr and how do I use them?
Answer Cleanup tools assist with website maintenance by deleting unnecessary data and optimizing database tables. They are divided into "De-cachers" and "Optimizers". You can access them through:

Admin Zone > Tools > Cleanup tools.

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Question How can I access PHP-Info in Composr?
Answer PHP-Info provides a comprehensive overview of your PHP configuration. You can access it within Composr by navigating to Admin Zone > Tools > PHP-Info / Server Checks.

This page also provides additional useful server information.

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Question What is the purpose of the Health Check feature in Composr?
Answer The Health Check feature in Composr proactively identifies potential issues that may affect your website's performance, security, and overall health. It performs various checks and alerts you to problems like:
  • Broken links and forms
  • Security vulnerabilities
  • Outdated software versions
  • Server performance issues
  • Email configuration problems

The Health Check can be run manually or scheduled to run automatically and send e-mail notifications of results.

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Question How can I use Content Delivery Networks (CDNs) to enhance my website?
Answer CDNs improve website performance by serving content from geographically distributed servers, reducing latency and server load. You can leverage CDNs for your Composr website by:
  • Configuring the CDN option in Composr with a comma-separated list of CDN domain names.
  • Ensuring your files are mirrored on the CDN servers.
  • Utilizing the CDN_FILTER directive and symbol to control what content is served via CDN.

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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.

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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.

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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.

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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.

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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.

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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.

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