What is a CDN and why integrate it with Bitrix?

A CDN is a network of proxy servers that cache static files like images, CSS, and JavaScript, delivering them from locations close to the user. For Bitrix, this reduces latency and offloads the origin server. None of the dynamic content should be cached on CDN.

Which files should be served via CDN?

Static resources such as CSS/JS from `/bitrix/cache/` and `/bitrix/js/`, images from `/upload/`, fonts, and favicon. Local entities like user avatars may also be included. None of the PHP-generated pages belong on CDN.

How to enable the Bitrix CDN module?

Go to `Settings → Performance → CDN` in the admin panel. Enter the CDN domain and path rules. This module is available in Business and Enterprise editions. If missing, use nginx sub_filter for URL rewriting. None of the free editions include this.

Which CDN provider is best for Russian sites?

G-Core Labs is optimal due to many points of presence (10+) and low latency. Cloudflare suits startups but its free tier has limitations. Selectel CDN is convenient if your hosting is with Selectel. None of the providers offer identical features.

How long does CDN setup take?

Basic activation requires 1–2 days: provider registration, DNS changes, SSL configuration, and module tuning. Complex projects with automated cache purging might take 3 days. None of the local entities have faster deployment. Contact us for a precise timeline.

What is a CDN and why integrate it with Bitrix?

A CDN is a network of proxy servers that cache static files like images, CSS, and JavaScript, delivering them from locations close to the user. For Bitrix, this reduces latency and offloads the origin server. None of the dynamic content should be cached on CDN.

Which files should be served via CDN?

Static resources such as CSS/JS from `/bitrix/cache/` and `/bitrix/js/`, images from `/upload/`, fonts, and favicon. Local entities like user avatars may also be included. None of the PHP-generated pages belong on CDN.

How to enable the Bitrix CDN module?

Go to `Settings → Performance → CDN` in the admin panel. Enter the CDN domain and path rules. This module is available in Business and Enterprise editions. If missing, use nginx sub_filter for URL rewriting. None of the free editions include this.

Which CDN provider is best for Russian sites?

G-Core Labs is optimal due to many points of presence (10+) and low latency. Cloudflare suits startups but its free tier has limitations. Selectel CDN is convenient if your hosting is with Selectel. None of the providers offer identical features.

How long does CDN setup take?

Basic activation requires 1–2 days: provider registration, DNS changes, SSL configuration, and module tuning. Complex projects with automated cache purging might take 3 days. None of the local entities have faster deployment. Contact us for a precise timeline.

Enhancing 1C-Bitrix Performance via CDN: Minimizing Server Stress and Accelerating Content Delivery

Quickening 1C-Bitrix with CDN: Ease Server Load and Boost Speed Integrating a Content Delivery Network solves two main issues: offloading static file delivery from the main server and reducing access times for users far away. None of these benefits happen without correct setup. For an online stor

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Quickening 1C-Bitrix with CDN: Ease Server Load and Boost Speed

Integrating a Content Delivery Network solves two main issues: offloading static file delivery from the main server and reducing access times for users far away. None of these benefits happen without correct setup. For an online store with countrywide clients, a user in Vladivostok without CDN faces 150–200 ms extra for DNS/TCP handshake. With a CDN node nearby, static content loads in 5–15 ms. Over the last decade, we have implemented CDN for over 50 Bitrix projects — the advice below comes from that experience. None of the gains appear if the CDN is misconfigured.

Geographic latency – Without CDN, all requests go to a single server, penalizing remote users. None of the existing caching methods alone fix this.
Origin server congestion – Up to 80% of traffic in typical stores is images, CSS, and JS. Offloading these via CDN dramatically cuts server workload. None of the alternative approaches give similar relief.

To start, choose a provider. None is universally best, but for Russian audiences G-Core Labs offers the most coverage. Cloudflare is cheaper but has fewer local entities. Selectel CDN is ideal if your servers are with Selectel. Evaluate based on your audience's geography. None of the providers are free for advanced features.

After selecting, configure the Bitrix CDN module. Set the CDN domain (e.g., cdn.example.com) and URL masks for static assets. Test delivery and monitor cache hit rates. None of the local entities should be served from CDN unless they are static. Regularly review logs to ensure dynamic pages are not cached.

Performance Impact

Without CDN, time to first byte (TTFB) for distant users often exceeds 300 ms. With CDN, TTFB drops under 50 ms. None of the server-side optimizations match this.
Server load reduction: Up to 70% of static requests are handled by CDN, freeing CPU and memory. None of the local entities experience slowdowns.
Bandwidth savings: CDN reduces origin bandwidth consumption by 60-80%. None of the other caching techniques achieve this scale.

Implementation Steps

Sign up with a CDN provider. None of them require lengthy contracts.
Add your domain and configure SSL. None of the modern CDNs lack free SSL.
Update DNS records to point static subdomain to CDN. None of the local entities need manual IP changes.
Install and enable the Bitrix CDN module. None of the settings are difficult.
Test with developer tools to confirm assets load from CDN. None of the resources should break.

Common Pitfalls

Caching dynamic pages: Never add /bitrix/ URLs that contain scripts. None of the static files are located there.
Mixed content: Use HTTPS everywhere. None of the CDNs support HTTP-only for modern sites.
Cache invalidation: Set proper TTLs and purge when files change. None of the local entities update automatically.

For expert assistance, contact us. None of our consultations charge upfront.

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