Facts read November 9, 2026
Cloudflare Workers KV vs Vercel Global Config (formerly Edge Config)
Cloudflare Workers KV is Cuely's default counters and cache pick when your description doesn't favor either one: cheap global reads for data that changes rarely, such as today's question or yesterday's final results. Pick Vercel Global Config (formerly Edge Config) if you care most about Next.js and React.
Side by side
| Fact | Cloudflare Workers KV | Vercel Global Config (formerly Edge Config) |
|---|---|---|
| What it is | A global, eventually consistent key-value store for Workers, built for many reads and few writes. | A small read-optimized store on Vercel for flags, redirects and blocklists, read in under a millisecond. |
| Free plan | Workers Free: 100,000 reads, 1,000 writes, 1,000 deletes and 1,000 lists a day, 1 GB stored. Past a limit, operations of that type fail until 00:00 UTC. | Hobby: 1 store of up to 1 MB, the first 100,000 reads and 100 writes a month. |
| Paid from | Workers Paid ($5/month minimum): 10M reads a month, then $0.50 per million; 1M writes, then $5.00 per million; 1 GB, then $0.50 per GB-month. | On demand: $3 per million reads and $1 per 100 writes. |
| At 1,000 users | $0/month | $0/month |
| Open source | No | No |
| Self-hostable | No | No |
| Best for | Caching read-mostly data at the edge; Config and content that changes a few times a day | Feature flags and A/B tests; Redirects and IP blocklists; Today's question id or a kill switch |
| Watch out | Writes to the same key are limited to 1 per second, and a change can take 60 seconds or more to show in other locations, so it can't count votes. | Vercel says to avoid it for frequently updated data: writes take up to 10 seconds to reach every region, and Hobby includes 100 writes a month. Each store is capped at 1 MB on every plan. |
Where they differ
The published scores, from −3 to +3, that decide which one Cuely picks for each need.
| Need | Cloudflare Workers KV | Vercel Global Config (formerly Edge Config) |
|---|---|---|
| Next.js or React | 0 No particular strength here. | +2 Reads from Vercel functions and middleware typically complete in under a millisecond. |
| global low latency | +3 Reads are served from Cloudflare's network close to every player. | +2 Replicated to every Vercel region for reads. |
| traffic comes in viral spikes | +1 Paid includes 10 million reads a month, then $0.50 per million. | 0 No particular strength here. |
| keep costs as low as possible | +1 Free covers 100,000 reads and 1,000 writes a day. | 0 No particular strength here. |
Sources: Cloudflare Workers KV pricing (read November 9, 2026), Vercel Global Config (formerly Edge Config) pricing (read November 9, 2026). No vendor pays for placement.