WordPress Multisite Hosting Comparison: 2024 Benchmarks

by Sarah Mitchell
WordPress Multisite Hosting Comparison: 2024 Benchmarks

WordPress Multisite Hosting Comparison: 2024 Benchmarks

Running a WordPress multisite network changes every hosting variable that matters. A single-site TTFB of 180 ms can balloon past 600 ms on the same server once you add shared object-cache contention, per-site table prefixes, and a plugin activated network-wide. Before you migrate — or sign a 12-month contract — you need numbers from a network that resembles yours, not a single vanilla install.

This WordPress multisite hosting comparison tests five managed hosts under identical network conditions: 10 subsites, WooCommerce active on three of them, and a shared Redis object cache where the host supports it. Every figure below came from the same 30-day test window (October–November 2024).

How I Set Up and Measured the Test Network

The test network ran WordPress 6.6.2 with PHP 8.2 on each host. I used the same child theme (a stripped GeneratePress child, no page builder), the same plugin set (WooCommerce 9.1, Yoast SEO 22.8, WP Rocket 3.16 where permitted, Redis Object Cache 2.5.4), and a database seeded with 500 products and 2,000 posts across the network.

Measurement tools and cadence:

  • TTFB: WebPageTest (Virginia probe, cable profile, median of 9 runs per site, once per week).
  • LCP: Lighthouse 11 CLI, same probe machine, three runs averaged.
  • Server response under load: k6, 50 virtual users, 2-minute ramp, targeting the network's busiest subsite.
  • Cost: Published list price for the tier that supports multisite and at least 10 sites, billed annually, converted to cost-per-subsite.

I did not test shared hosting. Multisite amplifies every shared-resource problem; the performance floor is too low to be useful for this audience.

The Five Hosts Tested

The candidates: Kinsta, WP Engine (Growth plan), Cloudways (DO Premium 4 GB), Pressable (Starter plan), and Flywheel (Freelance plan). Each was given a one-week warm-up period before measurement began.

One clarification on Cloudways: it is not a managed host in the same sense as the others. You provision the server; Cloudways manages the stack. I included it because many agency owners use it for multisite and it represents the self-managed ceiling on this list.

Results Table: TTFB, LCP, and Cost Across All Hosts

Host Avg TTFB (ms) Avg LCP (s) p95 TTFB under load (ms) Cost/mo (annual) Cost per subsite
Kinsta 148 1.9 310 $275 $27.50
WP Engine Growth 181 2.2 404 $190 $19.00
Cloudways DO 4 GB 162 2.0 287 $84 $8.40
Pressable Starter 214 2.6 512 $125 $12.50
Flywheel Freelance 229 2.8 601 $96 $9.60

TTFB is the median across all 10 subsites and all weekly runs. LCP is measured on each subsite's homepage. Load test used 50 VUs against the busiest WooCommerce subsite.

The Cloudways number deserves a footnote: that p95 TTFB of 287 ms is achievable only with Redis fully configured and Breeze (Cloudways' cache plugin) set to full-page cache mode. Out of the box, before tuning, Cloudways measured 498 ms p95 — worse than Pressable. The host rewards operators who know the stack.

Before and After: Adding Redis to the Network

The single highest-impact change across every host that supported it was enabling a Redis object cache at the network level. Here is what that looked like on Kinsta, which provisions Redis per environment:

Metric Without Redis With Redis Delta
Avg TTFB (all subsites) 241 ms 148 ms −38.6%
DB queries per page load 87 34 −60.9%
LCP (WooCommerce subsite) 2.7 s 1.9 s −29.6%
k6 p95 response (50 VUs) 589 ms 310 ms −47.4%

Those are not small margins. On a multisite, object cache pressure is multiplicative: each subsite issues its own cache key namespace, and without a persistent cache layer, every uncached request hits MySQL for options, transients, and user meta. Adding Redis collapsed query counts by 61 percent and pulled TTFB from a failing Core Web Vitals range into a passing one.

WP Engine and Pressable both include object caching in their stack by default (Memcached on WP Engine, Redis on Pressable). Flywheel uses a page cache but no persistent object cache at the Freelance tier — that explains the 229 ms baseline and the 601 ms p95 under load.

What Actually Differentiates These Hosts for Multisite

Network-Level Controls and Staging

Kinsta and WP Engine both offer staging environments that can clone the full network. On a 10-subsite network, that matters: you need to test plugin updates network-wide before pushing to production. Cloudways' staging is manual (clone the app, point a subdomain), which is workable but adds 20–30 minutes of setup per cycle. Pressable's staging is per-site, not per-network, which means testing a network-activated plugin requires staging each subsite individually — a meaningful operational cost at scale.

PHP Worker Allocation

Multisite concentrates traffic on a single WordPress install. A burst to the busiest subsite consumes PHP workers that every other subsite shares. WP Engine's Growth plan allocates workers per environment, not per site, which is the right model. Kinsta does the same. Pressable and Flywheel use a pooled model where workers are shared across all sites in your account — not just across subsites in one network. Under the k6 load test, that distinction showed up directly in the Flywheel p95 number.

Database and Table Prefix Handling

WordPress multisite creates one table per subsite for posts, postmeta, terms, and related tables. A 10-subsite network with default settings generates roughly 90 tables. At 50 subsites, you are at 450 tables in a single database. Kinsta and Cloudways handle this without complaint at the scales I tested. WP Engine flagged a support note at network creation recommending I enable their object cache MU plugin before adding subsites — good advice, but it means the out-of-box experience requires a support interaction.

CDN Integration

Kinsta's Cloudflare integration is network-aware: you configure it once and it covers all subsites. WP Engine's Global Edge Security (Cloudflare-backed) works the same way. On Cloudways, you add the Cloudflare Enterprise add-on per application — one application covers the whole network, so the cost is manageable, but setup is manual. Pressable routes through Automattic's CDN (Jetpack CDN for media), which covers images but not full-page HTML caching at the edge. Flywheel's Fastly CDN is included and works at the network level, though the cache-purge granularity is per-site rather than per-URL.

Recommended Settings for Any Multisite Network

Regardless of host, these configuration changes produced measurable gains across every environment I tested:

  1. Enable a persistent object cache. Redis is preferable to Memcached for multisite because it supports key namespacing per subsite out of the box with the Redis Object Cache plugin (v2.5+). If your host does not include Redis, Cloudways is the lowest-cost path to adding it.

  2. Set WP_CACHE to true in wp-config.php and confirm your cache plugin is network-activated. WP Rocket 3.16 handles this correctly; some older cache plugins activate per-site and miss the network admin layer.

  3. Increase WP_MEMORY_LIMIT and WP_MAX_MEMORY_LIMIT. On a 10-subsite network, 256 MB per process is a floor, not a ceiling. I ran tests at 256 MB and 512 MB; the 512 MB setting reduced PHP fatal errors under load from 4 per 1,000 requests to 0.

  4. Use subdomain installs over subdirectory installs if your host supports wildcard DNS. Subdomain installs allow per-subsite CDN cache segmentation. Subdirectory installs share a single cache key root, which increases cache invalidation surface.

  5. Audit network-activated plugins quarterly. Every network-activated plugin runs on every subsite, including subsites with no traffic. I found two plugins in my test network that added 14 database queries per page load on subsites where they served no function.

Do This First

Before you evaluate any host, run WebPageTest on your current network's busiest subsite and record the TTFB and LCP. Then enable Redis (or Memcached if that is what your host offers) and run the same test. In every environment I tested, the object cache change alone moved TTFB by at least 30 percent. If you are on a host that does not support a persistent object cache, that single constraint is costing you more performance than any hardware upgrade would recover.

If your budget is under $100/month, Cloudways on a DigitalOcean Premium 4 GB droplet is the only option in this comparison that delivers sub-200 ms TTFB at that price — but only if you are willing to configure Redis, Breeze, and Cloudflare yourself. If you want that performance without the configuration overhead, Kinsta's 148 ms median TTFB comes with the infrastructure already tuned; you pay $275/month for that convenience.

WP Engine sits between those two: better managed tooling than Cloudways, lower cost than Kinsta, and a 181 ms TTFB that passes Core Web Vitals thresholds on every subsite I tested. For a freelancer managing client networks who needs staging, cloning, and predictable PHP worker allocation without server administration, it is the most defensible choice in this guide on self-hosted e-commerce platform costs and WordPress multisite hosting comparison.

Pressable and Flywheel both need object cache improvements at their entry tiers before they are competitive for networks with WooCommerce subsites. The TTFB and p95 load numbers reflect that gap directly.