A $5 to $6 per month VPS with 1 vCPU, 1 GB of RAM, and 20–25 GB of NVMe storage will comfortably serve a WordPress site doing 10,000 to 30,000 pageviews per month. The same plan will choke on a site doing 150,000 pageviews if the theme is heavy and the cache is misconfigured. The difference between those two outcomes is not the provider — it is whether the plan was sized to the traffic in the first place.
Most buyers pick a VPS by price and only discover the mismatch after the site slows down or the host sends a resource-usage warning. That is an expensive way to learn. If you are still comparing providers, our comparison table lists the entry-level specs of the main budget hosts side by side; the sizing logic below works regardless of which one you choose.
Where Website Bottlenecks Actually Appear
A web request does not just consume CPU while it is being processed. On a typical budget VPS, the memory footprint is what decides whether a site survives a traffic spike:
- PHP-FPM workers: each worker reserves 30–60 MB of RAM, and WordPress commonly needs 4–6 workers under load.
- MySQL or MariaDB: the database daemon alone sits at 150–300 MB once buffers are allocated.
- Web server and cache: nginx plus a page cache (Redis or a file cache) adds 50–150 MB.
- Cron jobs and backups: a backup job that runs at 3 AM can briefly double memory usage.
Add those together and a 1 GB VPS leaves roughly 200–400 MB of headroom once a WordPress site is running. That headroom is your entire buffer for traffic spikes, and it is why the same plan that runs a quiet blog fine will fall over on a site with a viral post. The fix is not always more RAM — often it is a page cache that serves 90% of requests without touching PHP at all.
If you already have a server, measure before you buy anything. Three commands tell you which resource is actually tight:
free -m
ps aux --sort=-%mem | head -8
cat /proc/loadavgA site with 300 MB of RAM in use and 700 MB free does not need an upgrade; it needs a page cache. A site sitting at 950 MB used with swap active needs either more RAM or a lighter stack. Make that call with numbers, not with the provider’s upgrade emails — those arrive whether you need them or not.
A Sizing Table for Common Traffic Levels
These are practical starting points for a typical WordPress or similar CMS site, assuming a page cache is enabled and images are optimized. They are generous enough to absorb normal spikes:
| Monthly pageviews | RAM | vCPU | Storage | Typical plan price |
|---|---|---|---|---|
| Up to 30,000 | 1 GB | 1 | 20–25 GB NVMe | $5–$7/mo |
| 30,000–100,000 | 2 GB | 2 | 40–50 GB NVMe | $10–$14/mo |
| 100,000–300,000 | 4 GB | 2–3 | 80–100 GB NVMe | $18–$25/mo |
| 300,000+ | 8 GB | 4 | 160+ GB NVMe | $35+/mo |
A static site or a lightweight app server needs roughly a quarter of those figures. A 1 GB VPS can serve hundreds of thousands of pageviews if every request returns a cached HTML file, because the bottleneck moves from memory to bandwidth. The table above assumes a dynamic CMS, which is the common case for readers of this site.
Specs to Verify Before You Pay
Budget plans advertise the same headline numbers, but the fine print differs. Check these four items on any plan before committing:
- Sustained vs burst CPU: some hosts allow short bursts to 100% of the core but throttle sustained usage to 20–40%. Ask for the fair-use policy in writing.
- Storage type and limits: NVMe vs SATA SSD changes database latency by 3–5x. Also check the inode count, which small plans sometimes cap low.
- Bandwidth metering: look at whether transfer is counted in or out, and what the overage price is — it varies from $0.01 to $0.10 per GB.
- Overselling policy: on heavily oversold hosts, your neighbor’s CPU usage affects your latency. Test with a benchmark during the refund window.
For most small business sites, a reputable provider with a 1 GB / 1 vCPU plan and a solid page cache is enough for the first year. If you want to start with a plan that has room to grow, InterServer’s VPS lineup offers several configurations with straightforward pricing that is easy to compare against the table above.
The Bottom Line
Size the VPS to the traffic you actually have, not the traffic you hope for. Start with a page cache, measure memory headroom with the commands above, and upgrade only when the cache is already doing its job. Plan for growth with a host that lets you resize without re-provisioning — moving data between providers is the part that actually costs you a weekend. If you are still deciding between hosts, compare the entry-level plans side by side and then apply the sizing table to whichever provider wins on price. A correctly sized $6 plan outperforms an oversized $20 plan in every way that matters, and the money you save on hardware is better spent on a cache plugin, a CDN, and the time it takes to test your own load.
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