The speed of your WordPress hosting directly determines your Google ranking, your conversion rate and the experience of your visitors. But how do you measure that speed objectively? Many hosting providers claim to be the fastest, but few show you how you can check that yourself. In this article we explain step by step how to run a fair WordPress hosting speed test, which tools you use for it and what the results really mean. No marketing talk - just the facts.

At Theory7 we actively encourage our customers to test for themselves. Why? Because we have confidence in our infrastructure and because we believe that transparency in the hosting world is hard to find. Test us, compare us, and draw your own conclusions.

Why speed is important for your WordPress site

Google Core Web Vitals and SEO

Since 2021, Google has used the so-called Core Web Vitals as an official ranking factor. These are three metrics that measure how fast and stable your website loads and responds to user interaction. A slow website scores worse in the search results - it is that simple. Google has repeatedly confirmed that page speed is a factor in their algorithm, and with the Page Experience Update this has only become more important.

Conversion impact: every second counts

Research from Google shows that the chance of a bounce increases by 32% when the loading time goes from 1 to 3 seconds. Amazon calculated that every 100 milliseconds of delay costs them 1% in revenue. For an average webshop or business website the rule of thumb is: 1 second of extra loading time = 7% fewer conversions. That is not theory - that is measurable money you are missing out on.

User experience and trust

Visitors form a first impression of your website within 50 milliseconds. A slow site feels unreliable and unprofessional. Research from Akamai shows that 53% of mobile users leave a page if it takes longer than 3 seconds to load. You can have the most beautiful website in the world - if it loads slowly, no one sees it.

Loading time	Bounce rate increase	Conversion impact	User experience
0-1 second	Baseline	Optimal	Excellent - feels instant
1-2 seconds	+9%	-3 to -5%	Good - acceptable for most visitors
2-3 seconds	+32%	-7 to -12%	Mediocre - noticeable delay
3-5 seconds	+90%	-15 to -25%	Poor - visitors drop off
5+ seconds	+123%	-25% or more	Unacceptable - almost everyone leaves

The 5 most important speed metrics explained

1. TTFB (Time to First Byte)

The Time to First Byte measures how long it takes before the server sends the first byte of data to the browser after a request is made. This is purely a server measurement - it tells you how quickly your hosting responds, independent of your website layout or scripts. A high TTFB almost always points to slow hosting, an overloaded server or a poor server configuration.

What influences TTFB:

• The quality of the web server (LiteSpeed vs Apache vs Nginx)
• The distance between server and visitor
• The load on the server (how many other websites run on it)
• Database speed (SSD vs HDD, query optimization)
• PHP version and configuration
• Server-side caching (Redis, Memcached)

TTFB value	Assessment	What it means
< 200 ms	Excellent	Fast server, good configuration, server-side caching active
200-500 ms	Good	Solid hosting, possibly room for improvement
500-800 ms	Mediocre	Server is slow or overloaded, caching probably missing
800 ms - 1.5 s	Poor	Clear hosting problem, consider switching
> 1.5 s	Unacceptable	Immediate action needed - serious hosting problem

How to improve TTFB: switch to a hosting provider with LiteSpeed web servers, activate server-side caching (Redis or OPcache), use the latest PHP version and choose a server close to your target audience. At Theory7 WordPress hosting most sites reach a TTFB under 150 ms thanks to LiteSpeed Enterprise and NVMe storage.

2. LCP (Largest Contentful Paint)

The Largest Contentful Paint measures how long it takes before the largest visible element on your page is fully loaded. This can be a hero image, a large text block or a video thumbnail. LCP is one of Google's three Core Web Vitals and has a direct influence on your ranking.

What influences LCP:

• Server speed (TTFB is the basis for LCP)
• Image optimization and format (WebP vs JPEG)
• Render-blocking CSS and JavaScript
• Lazy loading configuration
• CDN use for static files

LCP value	Assessment (Google)	Recommendation
< 2.5 seconds	Good (green)	You score well - maintain this level
2.5-4 seconds	Needs improvement (orange)	Optimize images, improve caching
> 4 seconds	Poor (red)	Serious problem - tackle hosting or optimization

3. INP (Interaction to Next Paint)

Interaction to Next Paint (INP) has replaced First Input Delay (FID) as an official Core Web Vital since March 2024. INP measures how quickly your website responds to all user interactions throughout the entire visit, not only the first click. This includes clicking buttons, scrolling, filling in forms and menu navigation.

What influences INP:

• Amount and complexity of JavaScript
• Third-party scripts (analytics, chat widgets, ads)
• Efficiency of your WordPress theme
• Number and quality of plugins
• Browser rendering performance

INP value	Assessment (Google)	Recommendation
< 200 ms	Good (green)	Excellent interactivity
200-500 ms	Needs improvement (orange)	Reduce JavaScript, optimize plugins
> 500 ms	Poor (red)	Too many scripts or too heavy a theme

4. CLS (Cumulative Layout Shift)

The Cumulative Layout Shift measures how visually stable your page is during loading. You probably know it: you want to click somewhere and at that moment the whole page shifts because an image or ad is being loaded. That is layout shift - frustrating for users and bad for your SEO score.

What influences CLS:

• Images without defined dimensions (width/height)
• Fonts that load late (FOUT - Flash of Unstyled Text)
• Dynamically inserted content (ads, banners)
• Animations that change layout properties
• Cookie banners that shift the page

CLS value	Assessment (Google)	Recommendation
< 0.1	Good (green)	Minimal visual shift
0.1-0.25	Needs improvement (orange)	Check image dimensions and fonts
> 0.25	Poor (red)	Solve serious layout problems

5. Total loading time (Fully Loaded)

The total loading time - also called "fully loaded time" - measures how long it takes before your complete page is ready, including all images, scripts, stylesheets and fonts. Although Google officially weighs the Core Web Vitals more heavily, the total loading time is still an important indicator of the overall performance of your hosting and website.

Total loading time	Assessment	Typical for
< 1.5 seconds	Excellent	Optimized site on fast hosting
1.5-3 seconds	Good	Average WordPress site with caching
3-5 seconds	Mediocre	Unoptimized or slow hosting
5-8 seconds	Poor	Too many plugins, no caching, slow server
> 8 seconds	Unacceptable	Serious hosting or website problem

The best tools for a WordPress hosting speed test

GTmetrix

GTmetrix is the most complete free tool for testing website speed. It combines data from Google Lighthouse with its own measurements and gives you a clear report with scores, waterfalls and concrete recommendations.

Advantages:

• Combines Lighthouse data with its own measurements
• Extensive waterfall analysis shows exactly where the delay is
• A free account gives access to multiple test locations
• Historical comparison possible (track your progress)
• Video recording of the loading process available

Disadvantages:

• The free version is limited to 1 test location (Vancouver)
• A maximum of 5 tests per day without an account
• European test locations require a Pro account

How to use GTmetrix: go to gtmetrix.com, enter your URL, choose a test location (preferably in Europe if you are testing a Dutch site) and click "Test your site". Wait until the test is done and view the results. Pay special attention to the TTFB, LCP and the waterfall chart.

Google PageSpeed Insights

PageSpeed Insights is Google's own official tool. It is the only tool that shows you real field data - data from actual Chrome users who have visited your website. This makes it irreplaceable as an addition to lab data.

Advantages:

• Official Google tool - the data Google uses itself
• Combines field data (real users) with lab data (Lighthouse)
• Shows your Core Web Vitals status directly
• Concrete, prioritized improvement suggestions
• Completely free without limitations

Disadvantages:

• Field data only available for sites with sufficient traffic
• No waterfall analysis available
• Lab data can differ strongly from field data
• Limited historical comparison

How to use PageSpeed Insights: go to pagespeed.web.dev, enter your URL and click "Analyze". First look at the section "Discover what your real users are experiencing" (field data). Then scroll to the Lighthouse results for detailed recommendations.

Pingdom Tools

Pingdom is one of the simplest and fastest speed testing tools. It gives you a clear overview of your loading time, page size and the number of requests in a few seconds. Ideal for a quick check in between.

Advantages:

• Very simple and fast - result within seconds
• Clear performance assessment with a letter grade
• Multiple European test locations available (including Stockholm)
• Clear display of file sizes per type
• Free to use

Disadvantages:

• Less detailed than GTmetrix
• No Core Web Vitals reporting
• Limited optimization suggestions
• No historical comparison in the free version

How to use Pingdom: go to tools.pingdom.com, enter your URL, choose a test location (preferably Europe) and click "Start Test". View the total loading time, the performance grade and the waterfall to see which files load the longest.

WebPageTest

WebPageTest is the most advanced free tool and the favorite of web performance professionals. It offers unprecedented possibilities for in-depth analysis, but is less accessible for beginners.

Advantages:

• Most detailed waterfall analysis available
• Dozens of test locations worldwide, including Amsterdam
• Film strip view shows the loading process frame by frame
• Compare multiple tests side by side
• Test with different connection speeds (3G, 4G, cable)
• First visit vs repeat visit comparison

Disadvantages:

• The interface is less intuitive for beginners
• Results can be overwhelming due to the amount of data
• Waiting time during busy periods (tests are placed in a queue)

How to use WebPageTest: go to webpagetest.org, enter your URL, choose "Amsterdam, Netherlands" as the test location, select "Chrome" as the browser and click "Start Test". View the waterfall chart for a complete overview of every individual request your page makes.

Comparison of speed testing tools

Feature	GTmetrix	PageSpeed Insights	Pingdom	WebPageTest
Cost	Free (Pro from $14.95/m)	Free	Free	Free
Core Web Vitals	Yes	Yes (field + lab)	No	Yes
Waterfall analysis	Yes, extensive	No	Yes, basic	Yes, very extensive
European test location	Yes (Pro)	N/A	Yes (Stockholm)	Yes (Amsterdam)
Field data (real users)	No	Yes (CrUX)	No	No
Historical tracking	Yes (Pro)	Limited	No (free)	No
Difficulty level	Medium	Simple	Simple	Advanced
Best for	Overall analysis	SEO assessment	Quick check	In-depth diagnosis

Our advice: use at least two tools for a reliable WordPress hosting speed test. Start with Google PageSpeed Insights for the official Core Web Vitals data and use GTmetrix or WebPageTest for the waterfall analysis.

Step by step: how to do a fair speed test

Step 1: install a standard WordPress theme

To test the hosting fairly, you want to eliminate the "theme" variable as much as possible. Use a lightweight, well-coded theme such as Astra, GeneratePress or Kadence. These themes load fast and add little overhead of their own, which means you measure the performance of the hosting itself instead of the quality of the theme.

Avoid page builders such as Elementor or Divi for your test - these add considerably more CSS and JavaScript, which clouds the picture. You can always test later with your actual theme and page builder, but for a fair hosting comparison you start clean.

Step 2: add test content

An empty WordPress site is not representative. Add realistic content:

• At least 10 pages with text and images
• At least 5 blog posts of various lengths
• A contact form (Contact Form 7 or WPForms Lite)
• A menu with multiple levels
• A sidebar with widgets

You can use the WordPress Theme Unit Test Data - this is an official dataset from the WordPress team that is designed for exactly this purpose. Import it via Tools > Import > WordPress.

Step 3: test without caching plugins

The first test you do without any caching plugin. This gives you the "baseline" - the raw performance of your hosting without aids. Note down the TTFB, LCP, total loading time and the number of requests. This baseline tells you how well the server itself performs.

Note: if your hosting uses LiteSpeed (such as Theory7 web hosting), then there is already a built-in server-level cache active, even without a plugin. This is an advantage of LiteSpeed hosting, not cheating - it is part of the hosting performance.

Step 4: test with a caching plugin

Now install a suitable caching plugin:

• LiteSpeed Cache - if your hosting uses LiteSpeed (such as Theory7). This is the best option because the plugin communicates directly with the web server.
• WP Super Cache - universal, works on any hosting. A good baseline for comparisons.
• W3 Total Cache - more configuration options, but more complex to set up.

Activate the plugin with the default settings and run the same tests again. The difference between the test without cache and with cache tells you how effective the caching layer of your hosting is.

Step 5: test from different locations

The physical distance between the server and the test location influences the results enormously. If you have a Dutch site, test at least from:

• Amsterdam or another Dutch/European location (representative of your target audience)
• London (a nearby international location)
• New York (to see how your site performs for more distant visitors)

The difference in results between these locations tells you whether the hosting uses a CDN (Content Delivery Network) to bring content closer to the visitor.

Step 6: do at least 3 tests and take the average

A single test is never reliable. Server load fluctuates, network conditions vary and caching may not yet be fully warm during the first test. Run at least 3 tests per tool and take the average. Discard outliers (both extremely fast and extremely slow) and base your conclusion on the consistent values.

A good hosting provider scores not only fast, but also consistently. If your results vary strongly between tests, that is a sign of an overloaded or poorly configured server.

What makes WordPress hosting fast?

Web server: LiteSpeed vs Apache vs Nginx

The web server is the software that handles HTTP requests. This is one of the biggest factors in your hosting speed.

Feature	LiteSpeed Enterprise	Nginx	Apache
Architecture	Event-driven	Event-driven	Process-based
Static files	Very fast	Very fast	Average
PHP processing	Very fast (LSAPI)	Fast (PHP-FPM)	Slow (mod_php)
Built-in cache	Yes (very powerful)	Yes (basic)	No
HTTP/3 and QUIC	Full support	Experimental	No
WordPress compatibility	Excellent (own plugin)	Good	Good
.htaccess support	Yes (direct compatibility)	No (translation needed)	Yes (native)
Memory usage under load	Low	Low	High
Suitable for shared hosting	Very suitable	Suitable	Less suitable

LiteSpeed Enterprise is the clear winner for WordPress hosting. It processes PHP requests up to 6x faster than Apache thanks to the LSAPI interface, has a built-in cache that communicates directly with the LiteSpeed Cache plugin, and supports HTTP/3 and QUIC for faster connections.

Storage: NVMe SSD vs SATA SSD vs HDD

The type of storage determines how quickly data can be read from the disk. For WordPress - which makes intensive use of databases - this is crucial.

Feature	NVMe SSD	SATA SSD	HDD
Read speed (sequential)	Up to 7,000 MB/s	Up to 550 MB/s	Up to 200 MB/s
Random read (IOPS)	1,000,000+	100,000	200-500
Latency	< 0.02 ms	0.1 ms	5-10 ms
Impact on database queries	Minimal wait time	Short wait time	Noticeable delay
Suitable for WordPress	Optimal	Good	Not recommended
Price per GB	Higher	Average	Low

The difference is enormous: NVMe SSDs are up to 35x faster than traditional HDDs for random reads - exactly the type of operation that WordPress constantly performs with database queries. If your hosting provider still uses HDDs for WordPress hosting, that is a red flag.

Caching: server-level vs plugin-level

Caching is the technique where previously generated pages are stored so that they do not have to be rebuilt. There are two levels:

• Server-level caching (Redis, Memcached, LiteSpeed Cache) - works at server level, extremely fast, stores data in working memory (RAM). Redis can cache database queries so that WordPress no longer has to consult the database for repeated requests.
• Plugin-level caching (WP Super Cache, W3 Total Cache) - works within WordPress, stores HTML pages as files. Effective, but slower than server-level caching because the file system still has to be read.

The ideal situation is a combination of both: server-level object caching via Redis plus page caching via the LiteSpeed Cache plugin. This is exactly what you get at Theory7 WordPress hosting.

CDN: distribute your content worldwide

A CDN (Content Delivery Network) copies your static files (images, CSS, JavaScript) to servers all over the world. When a visitor opens your site, these files are delivered from the nearest server instead of your original hosting server.

• Cloudflare - the most popular CDN, a free basic plan available, a broad network of 300+ data centers worldwide
• QUIC.cloud - specifically designed for LiteSpeed servers, integrates seamlessly with the LiteSpeed Cache plugin, also optimizes dynamic content

A CDN drastically reduces the TTFB for international visitors. For a Dutch site with predominantly Dutch traffic the effect is smaller, but still measurable - especially for static files such as images.

PHP version: every version makes a difference

WordPress runs on PHP, and the version of PHP that your server uses has an enormous impact on performance. PHP 8.2 and 8.3 are significantly faster than older versions thanks to the JIT compiler and countless optimizations.

PHP version	Relative speed	Status	Recommendation
PHP 7.4	Baseline (1x)	End of Life	Upgrade immediately - no more security updates
PHP 8.0	1.2x faster	End of Life	Upgrade to 8.2+
PHP 8.1	1.3x faster	Security only	Acceptable, but upgrade recommended
PHP 8.2	1.4x faster	Actively supported	A good choice for stability
PHP 8.3	1.5x faster	Actively supported	The best choice - fastest and safest

Simply put: by just upgrading your PHP version from 7.4 to 8.3 you can achieve up to 50% speed gain without changing anything else. Check in your hosting panel which version you are running and switch to the latest stable version.

HTTP/3 and the QUIC protocol

HTTP/3 is the newest version of the HTTP protocol and uses QUIC instead of TCP as the transport layer. The advantages for website speed are significant:

• Faster connection setup - QUIC combines the TLS handshake with the connection setup, which means the first request is handled faster
• No head-of-line blocking - with HTTP/2 a lost packet blocked all other requests. With HTTP/3 requests are handled independently
• Better on mobile networks - QUIC handles connection switches better (for example from WiFi to 4G)

LiteSpeed Enterprise fully supports HTTP/3 and QUIC. If your hosting provider still runs on Apache or an older Nginx version, you miss these advantages.

Theory7's approach: why our servers are fast

Our WordPress hosting runs on the following technology stack:

• LiteSpeed Enterprise - the fastest web server for WordPress, with built-in caching and HTTP/3 support
• NVMe SSD storage - up to 35x faster than traditional HDDs for the random read operations that WordPress constantly performs
• Redis object caching - database queries are cached in working memory, so that repeated requests are served directly from RAM
• QUIC.cloud CDN - specifically optimized for LiteSpeed servers, speeds up both static and dynamic content
• PHP 8.2+ standard - all new accounts run on the latest stable PHP version
• Own hardware in the Netherlands - our servers are located in Dutch data centers, close to your target audience
• Maximum number of accounts per server - we deliberately limit the number of websites per server to guarantee consistently fast performance

The result: most WordPress sites on Theory7 reach a TTFB under 150 ms and a total loading time under 2 seconds - without you having to configure anything yourself. The LiteSpeed Cache plugin is pre-installed and configured with optimal settings.

But do not take our word for it. Test it yourself. That is exactly the reason why we wrote this article.

Common mistakes with speed tests

Mistake 1: testing only once

A single test says little. The first test after a period of inactivity is always slower because caches are cold. Test at least three times and take the average of the second and third test.

Mistake 2: testing from the wrong location

If you test a Dutch site from San Francisco, you get distorted results. The physical distance adds latency that has nothing to do with the quality of your hosting. Always test from a location that is representative of your target audience.

Mistake 3: comparing apples with oranges

You cannot compare the speed of your WordPress site with 20 plugins to an empty test site at another provider. For a fair comparison the test setup must be identical: the same theme, the same content, the same plugins.

Mistake 4: only looking at the total loading time

A site that is fully loaded in 4 seconds but has a TTFB of 100 ms is fundamentally different from a site that loads in 4 seconds with a TTFB of 2 seconds. In the first case it is an optimization problem (images, scripts). In the second case it is a hosting problem. Always look at the individual metrics.

Mistake 5: testing on a cache-warm page without realizing it

If you have just visited a page and test it again immediately, the browser cache is warm. This gives unrealistically fast results. Always use the "incognito" or "private" mode of your browser, or better still: an external tool that does not use a browser cache.

Do the test yourself: your next step

The question is: how fast is your current hosting? And are you satisfied with the answer?

If you want to experience how fast WordPress can be on an optimally configured server, we invite you to try Theory7 WordPress hosting. Run the same tests that we describe in this article and compare the results with your current provider. No marketing stories - just measurable results.

Do you have questions about interpreting your test results or do you want help optimizing your WordPress site? Our support team is ready to help you. We are happy to look at the figures together with you.

Remember: speed is not a luxury - it is a competitive advantage. Every millisecond counts. Test today and discover where your WordPress hosting stands.

Also check out our other hosting solutions: web hosting for smaller projects or a VPS if you need maximum control and scalability.

Sources and references

• Google PageSpeed Insights (pagespeed.web.dev)
• Cloudflare - Learning Center (cloudflare.com/learning)
• GTmetrix - Website Performance Testing (gtmetrix.com)