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How ImageEngine can Optimize Contentful CMS For Quicker Internet Efficiency | Codrops

A headless CMS is a content material administration system with solely a back-end configuration. The content material repository is accessible by a RESTful API for show on any platform. The one focus is to create, handle and ship structured content material wherever it’s wanted. Contentful is a headless content material infrastructure, particularly designed so that everybody with out writing code can publish or replace the content material. It has a separate pictures API to deal with pictures because it’s a strong method to appeal to consumer’s consideration and have the potential to create an affect. On this article, we’ll evaluate how ImageEngine’s API can rework pictures higher than the native API of Contentful. ImageEngine shows pictures the way in which customers need and creates a quicker web site.

How Does Contentful API Handle Photographs?

Contentful picture API refers to photographs as belongings and permits manipulation and retrieval of picture information. The asset URL is appended with a specified area to transform and manipulate the picture file. A picture of greater than 20MB is handled as an asset and its dimension is decreased for importing. The contentful API picture processing contains:

1. Retrieval

The unique picture will be retrieved from that very same asset’s URL.

2. The picture will be transformed to a special format

JPEGs: Picture element progressively improves till it’s downloaded absolutely and shows the picture as rapidly as doable.

PNGs: The PNG is an 8-bit picture format, helps as much as 256 colours, and is usually used for easy icons or pictures.

WebP: This format compresses pictures on the net whereas offering a wealthy picture of superior high quality.

3. Resizing and cropping the picture

Crop: The picture will be resized to the required width and peak. Photographs as much as 4000 pixels will be uploaded.

Resizing: Resize pictures with particular dimensions by the padding, filling, scaling, dropping, or thumbnail.

Specify focus: The main target space will be chosen for resizing. The values accepted are middle, prime, proper, left, backside, top_right, top_left, bottom_right, bottom_left, face, and faces. The circle radius in pixels is taken to crop the picture for rounded corners.

4. Manipulate Picture

The picture high quality will be altered and will be expressed in share. Set the RGB values for background coloration whereas setting the pad match kind and nook radius.

How Does ImageEngine Handle Photographs?

ImageEngine’s picture administration course of adopts next-level optimization methods to assist web sites obtain most efficiency. The developer may want to change the HTML of the location to alter the way in which pictures are displayed in native apps.

ImageEngine gives automated picture optimization primarily based on consumer hints, WURFL system detection, and data reminiscent of decision, optimum dimension, format, and compression. Its auto-mode helps various sizes, decision, and rather more which is appropriate with desktop and cell as nicely. It ensures that the consumer will get a high quality picture within the lowest doable dimension.

ImageEngine’s CDN receives a picture request after which rigorously searches for environment friendly edge servers. The servers detect the requesting browser and system to extract particulars reminiscent of:

  • Gadget display screen dimension
  • Display decision
  • Gadget pixel ratio
  • Viewport dimension
  • Supported picture codecs

So it generates totally different variations primarily based on system dimension, functionality, or compression charge. It embeds distinctive edge servers and its cache serves quick service even with a number of variations.

Format Conversion

After the system detection, probably the most appropriate picture format is robotically chosen. It’s carried out by handbook verification, WURFL system detection, and superior techniques. It confidently converts the picture to a tool supported format whereas decreasing its dimension to enhance the web site expertise.


To supply a fantastic consumer expertise, the picture is resized completely to slot in the viewport. With the assistance of consumer hints, it may deal with Retina like high-resolution shows and would be certain that to serve the suitable picture dimension in keeping with the wanted pixel dimension.

Metadata & Compression

The embedded metadata is eliminated for picture optimization. Picture compression is carried out in keeping with system display screen dimension with out compromising the picture visible high quality.

Consumer Hints

The Blink-based browsers help consumer hints, and it sends viewport particulars for producing completely optimized pictures. With this info, ImageEngine will robotically ship the bottom doable file dimension with one of the best visible high quality.

Tips on how to Combine ImageEngine to Contentful?

It’s straightforward to combine the ImageEngine picture optimization API with Contentful to govern, convert, and switch the picture information for fast retrieval. To configure ImageEngine API with Contentful:

Step 1: Join an ImageEngine Account to get began with optimizing pictures and acquiring a supply deal with for quicker internet web page loading.

Step 2: Subsequent, outline the origin of the pictures. Enter the URL of the Contentful-powered web site, or just enter the Contentful API base URL: pictures.ctfassets.web (read-only) as picture origin location.

Step 3: An ImageEngine supply deal with is generated. Copy this supply deal with.

Step 4: Replace the picture tags to direct picture requests to ImageEngine by changing any occurrences of the default Contentful picture API (pictures.ctfassets.web) with the brand new ImageEngine supply deal with simply supplied.

For instance, if the unique picture tag seemed like this:

<img src="https://pictures.ctfassets.web/yadj1kx9rmg0/wtrHxeu3zEoEce2MokCSi/cf6f68efdcf625fdc060607df0f3baef/quwowooybuqbl6ntboz3.jpg"/>

Then modify the picture tag URL with the ImageEngine Supply Tackle to appear like this:

<img src="https://<ImageEngine-Supply-Tackle>/yadj1kx9rmg0/wtrHxeu3zEoEce2MokCSi/cf6f68efdcf625fdc060607df0f3baef/quwowooybuqbl6ntboz3.jpg"/>

Contentful Picture API vs ImageEngine Picture API

Contentful API Picture

The Contentful optimized picture has a content material size of 46967 bytes in PNG format. As proven beneath.

ImageEngine Optimized Picture

The ImageEngine optimized the identical PNG picture to WebP format and decreased content material size to 7924 bytes. As proven beneath.

Due to this fact, ImageEngine compresses the picture much better than the Contentful with out compromising with the content material high quality.

Thus, by directing picture requests to the ImageEngine Supply Tackle, ImageEngine will robotically detect the system, optimize the picture, and ship through its world server community. It will vastly speed up picture loading time, lower the bodily distance between the consumer and content material cached on the community, and preserve the picture high quality.

Step 5: Tune-up the account with the assistance of the ImageEngine management panel. The settings will be modified, set engine origins, and customise the supply addresses.

Let’s evaluate ImageEngine’s picture and Contentful revealed picture.

As you’ll be able to see, the picture dimension revealed by Contentful is considerably bigger than ImageEngine’s optimized picture, however there may be negligible visible distinction between the 2. Along with these codecs, ImageEngine may also convert pictures to the brand new AVIF format which isn’t doable with Contentful API.


Organizations can combine Contentful CMS with ImageEngine’s picture optimization API and CDN to achieve aggressive benefits. One such benefit is climbing to the higher spots on the search engine consequence pages. The quicker pace has a direct reference to the improved consumer expertise of the web site and when the consumer expertise improves, it improves the core internet vitals that assist in the achievement of targets associated to the long-term presence on engines like google.

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