Composite site technology from 1C-Bitrix

Composite site technology from 1C-Bitrix

Composite site – a site made using a patented technology from “1C-Bitrix”, which is designed to speed up the loading of pages in the user’s browser. This setting allows visitors to almost instantly get the content of the page, and also affects the ranking factors of the resource in search engines, but is it that simple? Let’s figure it out.

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How does a composite site work?

The essence of the composite site technology is that the page is divided into static and dynamic content. Static is loaded instantly from a pre-formed cache, thereby reducing the load on the computing power of the server. Dynamic content is displayed as the page is viewed.

On sites without this technology, the HTML markup of the page is initially loaded – its frame. Further, design styles, scripts and images are loaded. Because of this sequence of loaded items, there is often a small but user-perceptible latency. A composite site is devoid of this drawback, since HTML markup, some of the unchanging elements of the page, for example, images, styles, etc., are in the cache.

In addition, the resource may contain dynamic information, for example, product prices, cart contents, banners, etc. On a composite site, this data is updated in the background and cached in the visitor’s browser, which also helps speed up the loading of page elements.

For new or changed data, the cache is automatically created (or updated) when the first user logs in – for him the download will take place as usual, and subsequent visitors will get to the resource using composite technology.

Also, in the CMS settings, you can determine the frequency of updating the cache or update (delete) it manually.

Pros and cons of composite site technology

Before using this technology, you need to decide on its pros and cons.


  • Increasing page loading speed is the most obvious plus of a composite site. The following benefits are derived or related.
  • Positive influence on search engine ranking factors. This happens by improving behavioral factors and user experience.
  • Increased conversions – Users love fast resources.
  • The reliability of the site is improved with a large number of visitors.


  • Additional cache space is required on the server. The size depends on the specifics of the site, but in any case it can be limited in the settings.
  • The technology is not always relevant for sites with a large amount of frequently changed data, for example, large online stores.

Composite site in terms of SEO

As noted above, this technology is able to positively influence the ranking of a site in search engines.

Slow loading and ranking

Slow website page loading speed has long been a negative signal for search engines and can nullify all SEO optimization. Those. you can pour in large budgets for the development of the resource, but if it loads slowly, then there will be a large number of refusals from users, after which the site will begin to lose its position in organic.

Search engines are fighting with all their might against such sites, trying to offer their users high-quality results.

Slow download speeds are especially noticeable on mobile devices, and this traffic often accounts for over 50% of visitors.

Behavioral factors

Search engines closely monitor users’ interest in a site and their behavior in general. The main indicator of the poor quality of the site in this case is the percentage of bounces – this is when the visitor opened the page, did not wait for the download and left it. The average loading speed of commercial sites should not exceed 5 seconds. Composite site technology allows solving this issue in a number of cases.

On the other hand, when it comes to user interest, fast page loading allows for a positive user experience. It is much more pleasant for visitors to interact with “fast” resources, instantly gaining access to the requested information. Remember that search engines follow every step of the user, in particular:

  • How long did he spend on the site.
  • How many pages have looked.
  • Did you return to the resource, and how often.

High page loading speed contributes to all of these three points (all other things being equal), giving search engine ranking algorithms positive signals.

How to launch composite site technology?

Go to
Go to “Settings” – “Product Settings” – “Composite Site” – “Settings”

Before starting a composite site, you need to check the version of 1C-Bitrix, it must be 14.5 and higher. Autocomposite mode is available from version 16.0.14. The next item is to check the license, it must be active.

Let’s start setting up:

  1. We go into the settings – “Composite site”.
  2. On the “AutoComposite” tab, click the “Enable AutoComposite” button.
  3. In the settings of the composite site (tab), select “Delayed cache overwrite mode”. Value 120 sec.
  4. Below in the “List of domain names” we indicate the domain of the site.
  5. We put a daw in front of “Save on disk only pages without parameters.”
  6. In the “Cache storage engine” section, select store in files and specify the size of the disk quota – the space on the server disk that will be allocated for cached data. It is recommended to use as much disk space as possible.
  7. Immediately reset the cache using the link below. Select “All HTML Cache Pages”.

The composite site setup is now complete.

To check that the composite mode works correctly, the developer needs to go to the site in incognito mode, and visit the same page several times to create cache files. It is imperative to check the operation of all components of the page by reproducing the user movement scenarios.

The cache is stored and written in incremental mode, i.e. when new data comes in, new cache files appear. When data is deleted, the cache files are deleted accordingly. Therefore, you should not manually delete the cache.

Can any site be made composite?

The Autocomposite feature has made life much easier for developers. However, not all sites can be switched to composite mode so easily. Problems most often arise when using custom components. In other words, automatic translation of a site into a composite one is possible if the resource is simple enough in terms of architecture.

If additional components are used that interfere with the operation of a composite site, then they can be transferred to this technology only in manual mode, placing their content in the dynamic area of ​​the template.

# Web development
# bitrix

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