Cost-per-feature table (as listed on 29 October 2026)
| Feature | SiteGround GrowBig (shared) | Kinsta Single 35k (managed) | WP Engine Essential (managed, shared environment) |
|---|---|---|---|
| Listed price | $4.99/mo intro, renews at $29.99/mo, prepaid 12 months | $35/mo or $30/mo billed annually | $28/mo billed annually ($336 due at signup) |
| How usage is limited | Traffic listed as unmetered; FAQ estimates about 100,000 visits | 35,000 visits/mo; $0.50 per 1,000 over | From 25,000 visits/mo; $2 per 1,000 over on the plans named in its billing article |
| Storage | 50 GB | 10 GB | From 10 GB |
| Staging | Included | Free one-click staging | 1-click staging and dev environments |
| Backups | Daily plus on-demand; 30-day retention stated | 14 days | Daily plus on-demand, kept 30 to 60 days |
| CDN | Free CDN for static files; Premium CDN adds dynamic caching | Cloudflare CDN and edge caching included | Cloudflare CDN included via Advanced Network |
| PHP capacity documented | No worker count on plan page | Threads and memory pool documented per site | Worker queue documented; count not on plan page |
| Support | 24/7 chat, phone, ticket | 24/7 human support in 8 languages | 24/7 chat on Essential |
What 'managed' actually adds
Edge page caching. Kinsta's edge caching copies its page cache to Cloudflare's network of 300+ data centers and is included with all plans. WP Engine's Cloudflare CDN is included with each plan once DNS points to its Advanced Network or Global Edge Security. SiteGround's free CDN caches only static files; caching dynamically generated pages at the edge requires its Premium CDN.
Documented PHP capacity. Kinsta documents PHP threads and memory pools per site and sells more memory at $10 per 500MB a month. WP Engine documents how uncached requests queue for PHP workers and when a 504 results. SiteGround's plan page lists no worker counts. For a course site this is the difference that matters most, because logged-in lesson and quiz pages are uncached.
A WordPress-only scope. Kinsta's support will disable a plugin or theme causing a fatal error to bring the site back online, and investigate reproducible performance issues to rule out the server or platform configuration. It does not edit code, optimise for speed-test scores, or support non-WordPress scripts.
What 'managed' does not add
Plugin and code fixes. Kinsta lists any code editing as out of scope. WP Engine provides 'limited support' for third-party plugins and themes and cannot assist with custom CSS, HTML, PHP or JavaScript. SiteGround's KB puts plugin functionality, plugin conflicts and custom code out of scope too. If your slow page is a LearnDash report query or a MemberPress rule, all three will point you to the plugin developer.
Logged-in caching. Kinsta's edge caching states that anywhere a user is logged in bypasses caching, and SiteGround's CDN bypasses for logged-in users, carts and checkout. A managed host's cache layer helps your sales pages, not your students' lesson pages.
Unlimited traffic. Both managed hosts meter visits, counting a unique IP once per day. SiteGround lists traffic as unmetered with an estimated capacity instead. A course with daily logins can cost more on a visit-metered plan than its page views suggest.
Worked example: is the upgrade worth $360 a year?
Hypothetical: a course on SiteGround GrowBig at the $29.99 renewal price ($359.88 a year) against Kinsta Single 35k at $30 a month billed annually ($360 a year). The prices are almost identical after renewal, so the decision is about fit, not cost.
With 800 active students logging in on 18 days a month (14,400 visits) plus 25,000 marketing visits, the site uses about 39,400 visits. On Kinsta Single 35k that is 4,400 over: 4.4 x $0.50 = $2.20 a month. Storage is the bigger constraint: GrowBig includes 50 GB, Kinsta Single 35k 10 GB, with overage prorated at $2 per GB a month.
Choose the managed plan if your problem is a measured PHP queue or you need Cloudflare edge caching of public pages. Stay on GrowBig if your site needs more than 10 GB of uploads, or if you have not yet profiled which plugin makes logged-in pages slow.
Who should not upgrade yet
- Your slow pages are logged-in lesson pages and you have not identified the slow plugin or query: no host's page cache serves those.
- You are still on an introductory shared price and have under a few hundred active students; recheck after the renewal date.
- You store large media in WordPress: Kinsta Single 35k to 125k include 10 GB versus 50 GB on GrowBig. Move video off-server first.
- Your site runs non-WordPress scripts you rely on: Kinsta does not support them.
- You expect support to fix plugin conflicts: none of these scope pages promise that.
Signals that the upgrade is justified
- Your host's logs show 502 or 504 errors during cohort starts, and the requests are legitimate student traffic.
- You need staging that copies the live site cleanly before every plugin update, and your current plan lacks it.
- Your marketing pages are slow for distant visitors and you want HTML cached at the edge without buying a separate CDN tier.
- You want longer backup retention than your current plan publishes.
Questions before you decide
Is SiteGround GrowBig 'managed WordPress'?
It is a shared hosting plan with WordPress tooling: staging, daily and on-demand backups, a free static CDN and 24/7 support. It does not publish PHP worker counts, and its free CDN does not cache dynamic pages.
Will managed hosting make my lesson pages faster?
Only if the bottleneck is the server. Edge and page caches are bypassed for logged-in users at Kinsta and SiteGround, so lesson pages depend on PHP capacity and your plugins' queries.
Do managed hosts fix plugin conflicts?
Not as a rule. Kinsta will disable a plugin causing a fatal error; WP Engine and SiteGround analyse server-side logs. Fixing the plugin is left to its developer.
Sources & verification
Product details and prices can change. Check the linked provider before buying.
- SiteGround: Web hosting plans Accessed 29 Oct 2026
- SiteGround: Company and product information page Accessed 29 Oct 2026
- SiteGround KB: Scope of technical support Accessed 29 Oct 2026
- SiteGround KB: SiteGround CDN configuration, headers and purging Accessed 29 Oct 2026
- Kinsta: WordPress hosting plans and pricing Accessed 29 Oct 2026
- Kinsta: WordPress hosting overages Accessed 29 Oct 2026
- Kinsta: PHP performance (threads and memory pool) Accessed 29 Oct 2026
- Kinsta: Edge caching Accessed 29 Oct 2026
- Kinsta: Scope of support for WordPress hosting Accessed 29 Oct 2026
- WP Engine: Plans and pricing Accessed 29 Oct 2026
- WP Engine: Understand billable visits Accessed 29 Oct 2026
- WP Engine: PHP workers and request prioritization Accessed 29 Oct 2026
- WP Engine: Support channels and scope Accessed 29 Oct 2026
- WP Engine: Configure content delivery network Accessed 29 Oct 2026
Sources link directly to providers. Product buttons may use separately labeled affiliate links. Read our disclosure.