IONOS vs SiteGround

IONOS is strongest for budget shared/VPS hosting. SiteGround is strongest for WordPress sites. Here's how they stack up on price, uptime, and support.

Feature	IONOS	SiteGround
Starting price	$0.02/mo	$17.99/mo
Best for	Budget shared/VPS hosting Windows workloads EU-based data residency Granular building-block cloud pricing	WordPress sites Small business websites Agencies wanting managed WP WooCommerce stores
Stated uptime SLA	99.99%	not formally published as a credit-backed SLA on marketing pages; SiteGround informally markets high uptime (~99.9%) via status page / blog claims
Storage	NVME	SSD
Regions	6	6
Managed Kubernetes	Yes	No
Support channels	24/7 Phone, Ticket, Docs, Live Chat	Ticket, Live chat, Phone (higher tiers/cloud), Docs/Knowledge base
Compliance	GDPR, ISO 27001	GDPR
Hidden costs to watch for	Intro pricing on VPS+ and Web Hosting plans (e.g. $2/mo, $1/mo) is a 3-month or 1-year promotional rate on a 1-year contract; renewal pricing after the promo/contract period is 2-6x higher Additional static IPv4 addresses billed at $6.00 per 30 days each Outbound data transfer beyond the free 2TB pooled allowance is tiered: $0.036/GB (2-10TB), dropping to $0.018/GB beyond 150TB Windows Server and RedHat Enterprise Linux require separate per-vCPU/core license surcharges on top of Compute Engine/Cube pricing IONOS CLOUD Compute Engine building-block pricing (Cores + RAM + Storage priced independently) can be harder to estimate than fixed-tier competitors without using their price calculator	Renewal prices are 3-6x higher than signup/intro price after the first term (e.g. StartUp $2.99 -> $17.99/mo) Storage and visit caps are enforced per plan tier; exceeding them can trigger upsell prompts Free domain / free migration offers are time-limited promotions, not permanent 12-month (or longer) prepay is required to get the lowest advertised intro rate
Last reviewed	2026-07-18	2026-07-18