Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
Sitestream by SeenThis is an optimization and acceleration service for website images. It is not a general-purpose CDN in the traditional sense that covers all static and dynamic assets. Instead, it integrates through a script and image URL prefix, handling format selection, compression, resizing/cropping for JPG, PNG, WebP, AVIF, and other image formats, then hosting and delivering the optimized images via Sitestream. Its core value proposition is reducing data transfer, improving image display speed, and providing carbon-reduction-related data.
The product copy highlights a “Global optimized CDN” for worldwide image delivery, but it does not disclose the number of nodes, regions, carrier coverage, or SLA. Functionally, it is fairly focused: it automatically selects the format that loads fastest and uses the least data for a given device, browser, and network condition; supports intelligent compression, instant image display, resizing by width and height, and centered cropping; and also supports CSS background image URL prefixes and a WordPress plugin. When a new image is requested for the first time, the original image may be fetched from the origin first while transcoding happens in the background; subsequent requests are then served using Sitestream’s optimized version.
Pricing is clear, based on monthly subscriptions with included bandwidth: Micro at €13/month with 25GB, Basic at €25/month with 100GB, Start-up at €94/month with 500GB, Scale at €250/month with 2TB, and custom pricing for the Enterprise plan. All plans include a 7-day free trial. The terms mention possible renewal, upgrade, or overage fees, but the captured text does not provide a per-GB price for excess bandwidth. Payments are mainly handled through Stripe, with support for credit/debit cards or agreed payment methods. Taxes are charged separately.
The main advantages are its relatively simple integration model, making it suitable for teams that want to optimize images without rebuilding their site; transparent bandwidth-based plans, with the lower tiers suitable for small sites to test; and carbon-reduction reporting, which can add value for brand ESG or sustainability disclosures. The downsides are also clear: it does not disclose security capabilities such as DDoS protection, WAF, or access control; node and availability information is limited; and it is better understood as an image optimization CDN rather than a platform for full-site acceleration, security protection, or complex edge computing.
It is suitable for brand websites, content sites, e-commerce landing pages, and image-heavy websites that care about loading experience and traffic costs. If your users are mainly in mainland China, evaluate it carefully: the text does not mention mainland China nodes, ICP filing, domestic compliance, or local payment support, so performance in China is unknown. For China-focused businesses, alternatives to compare include Qiniu Cloud, UpYun, Alibaba Cloud CDN/OSS image processing, and Tencent Cloud CDN/CI. For global image optimization, it can also be compared with Cloudinary, imgix, ImageKit, Cloudflare Images, and similar services.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on sitestream.co official site.
sitestream.co is an Sweden CDN provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach sitestream.co directly.