$2,000/month in servers → $13/month on Spider.
A11yWatch provides automated WCAG accessibility audits. To do that, it needs to crawl every page of a customer's website, render JavaScript, and feed the HTML into its analysis engine. That's a lot of crawling, and it has to happen on demand.
Running that in-house meant dedicated crawl servers, a headless browser fleet for JS rendering, and proxy rotation to avoid rate limits. Multiple microservices just to get the HTML before the actual accessibility work could start. The infrastructure bill for crawling alone was around $2,000/month.
Replacing the crawl layer with Spider collapsed all of that into API calls. No servers to provision, no browsers to manage, no proxies to rotate. The monthly cost for the same crawling workload: about $13. The engineering time freed up went back into the actual product. Better audits, not better scrapers.
We were running multiple services just to collect HTML. Spider replaced the entire crawl stack for less than what we spent on coffee.