IONOS by 1&1 vs Contabo

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We have tested 8 VPS plans from IONOS by 1&1 and Contabo. This page is a summary and comparison of all test results for those 2 providers.

IONOS by 1&1

IONOS by 1&1 was founded in 1988.
It is headquartered in Germany.
It employs 7000 people.
It offers Web, Wordpress, Dedicated and VPS hosting products.

It has datacenters in:
  • Germany
  • Spain
  • United Kingdom
  • United States


Contabo was founded in 2003.
It is headquartered in Germany.
It offers Web, Dedicated and VPS hosting products.

It has datacenters in:
  • Germany

VPS Plans

Plan Name Monthly Price CPU cores Memory (GB) Disk Space (GB) Data Transfer (GB) Latest trial
VPS 300 €3.99 2 4.0 300 0 Sep 03 2019
S SSD €4.99 4 8.0 200 10000 May 07 2019
Cloud Server S $8.00 1 1.0 40 10000 Nov 11 2019
M SSD €8.99 6 16.0 400 0 Jan 31 2020
Cloud Server M $16.00 2 2.0 60 9999 Aug 29 2019
Cloud Server L $24.00 2 4.0 80 9999 Apr 10 2019
Cloud Server RAM L $40.00 2 8.0 80 Jan 11 2020
Cloud Server XL $50.00 4 8.0 120 9999 Feb 27 2020

Performance Grades

To summarize the performance of each VPS plan, we generated grades based on the various tests that were run: web, sysbench, endurance and remote timing tests. Each grade focuses on one aspect of the VPS speed or stability (cpu, disk IO, network IO...) and is made of one or more metrics measured during the tests.

Grades are evenly distributed between A and F. A is best, F is worst.

Follow the letter links to find the test results backing the grade.

How are grades calculated?

Plan Name Web Perf Raw CPU Power Perf Stability Disk IO Perf Network Perf
VPS 300
Cloud Server S
Cloud Server M
Cloud Server L
Cloud Server RAM L
Cloud Server XL
Show Price Weighted Grades   

VPS Instance Provisioning Time

This is the average time it took to create an instance for IONOS by 1&1 and Contabo from instance order to instance accepting connections.

All VPS provisioning times

IONOS by 1&1 Contabo
Number of instance creations in sample 8 3
Provisioning time in seconds 212s 2140s

In Depth...

The grades above are based on the following test results.

Web Response Times

We ran a database intensive web application with ~100,000 hits per day for several days on cloud servers from IONOS by 1&1 and Contabo. This is the average response time measured locally on the VPS for each plan we tested.

Local Response Time per Plan

Lower is better

Provider Plan Average response time
1and1 Cloud Server S 61.0ms
1and1 Cloud Server M 53.0ms
1and1 Cloud Server L 59.0ms
1and1 Cloud Server RAM L 60.0ms
1and1 Cloud Server XL 54.0ms
Contabo VPS 300 140.0ms
Contabo S SSD 165.0ms
Contabo M SSD 110.0ms

During the Web Test, we collect response time metrics, CPU metrics and database performance metrics. All of those are measured locally on the VPS running the web server. All metrics can be compared on the Web Performance Comparison page.

Sysbench CPU Performances

We ran the full suite of Sysbench tests on VPS plans of IONOS by 1&1 and Contabo. These are the Sysbench CPU test results:

Rate of operations

Higher is better

Provider Plan Operations per second
1and1 Cloud Server S 338.1
1and1 Cloud Server M 702.8
1and1 Cloud Server L 704.3
1and1 Cloud Server RAM L 702.9
1and1 Cloud Server XL 1414.4
Contabo VPS 300 459.5
Contabo S SSD 1009.2
Contabo M SSD 1509.4

Sysbench test results are also available for random disk IO tests, sequential disk IO tests and memory tests.

Review and compare all Sysbench numbers on the Sysbench Comparison page for IONOS by 1&1 and Contabo.

Remote Timings

During the entire duration of the web performance test, we collected web response times from 5 different locations in the world. The chart below reports the connection establishment time + TLS handshake latency from all 5 locations. (That excludes the time spent on the server that is already measured in web response times above and it also excludes the DNS resolution time since it is not dependent on the provider).

Remote Latency per Plan

Lower is better

Provider Plan Average remote request duration
1and1 Cloud Server S 497.0ms
1and1 Cloud Server M 507.0ms
1and1 Cloud Server L 412.8ms
1and1 Cloud Server RAM L 316.4ms
1and1 Cloud Server XL 322.2ms
Contabo VPS 300 492.0ms
Contabo S SSD 502.6ms
Contabo M SSD 484.8ms

Detailed remote timings measurements including connection time, TLS handshake time, and response time can be compared for IONOS by 1&1 and Contabo on the Remote Timings Comparison page.

Network Transfers

We have performed large file transfers from the IONOS by 1&1 and Contabo VPS and we measured the speed of downloads and uploads.

The transfers involve multiple files, 10 threads and last for at least 10 seconds at maximum speed. The transfers are repeated 3 times from different servers and only the fastest transfer is reported here.

Download Speed per Plan

Higher is better

Provider Plan Network Download Speed
1and1 Cloud Server S 353.7Mbps
1and1 Cloud Server M 397.5Mbps
1and1 Cloud Server L 257.8Mbps
1and1 Cloud Server RAM L 384.1Mbps
1and1 Cloud Server XL 383.3Mbps
Contabo VPS 300 99.9Mbps
Contabo S SSD 198.5Mbps
Contabo M SSD 375.8Mbps

Network Transfers measurements including download and upload speeds can be compared for IONOS by 1&1 and Contabo on the Network Transfers Comparison page.

Sustained CPU Endurance Tests

We pushed the CPU of those VPS plans hard for 24 hours straight.

This test shows how fast the VPS can go for long periods of time, how stable the performance is and it also gives clues on how overallocated the VPSs may be.

Average number of operations per hour

Higher is better

Provider Plan Average ops/hour
1and1 Cloud Server S 3247.7
1and1 Cloud Server M 6548.3
1and1 Cloud Server L 6256.9
1and1 Cloud Server RAM L 6442.0
1and1 Cloud Server XL 12376.5
Contabo VPS 300 1798.5
Contabo S SSD 4435.3
Contabo M SSD 7037.9

Review and compare endurance test results for IONOS by 1&1 and Contabo on the Sustained CPU Endurance Comparison page.

Features and Usability

Features not included in the VPS price of the plan will be marked as missing but they may be available for the fee.

IONOS by 1&1 Review Contabo Review
Hourly Billing  Yes No
DDOS Protection  No Yes
Backups  No Yes
Control Panel  Custom custom
SSH Keys Setup  Yes No
Total Number of Datacenters  4 2
Number of Datacenter Continents  2 1
Compare more IONOS by 1&1 and Contabo Features


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