You can fix slow server response times on Bluehost by configuring a solid cache plugin, avoiding high CPU plugins, using a CDN, cleaning your database, optimizing images, deleting unused plugins, using the Blackhole For Bad Bots plugin to stop spam bots, Heartbeat Control plugin, and making sure your hosting plan has enough server resources to handle your traffic/plugins.
Is Bluehost the problem?
Probably… they’re owned by EIG who is known for cutting costs by overcrowding servers. They’re known for being cheap (not fast) and are rated poorly in Facebook polls. Try joining the WordPress Hosting Facebook Group and see what real, unbiased people are recommending for hosting. There are much better options than Bluehost. I use Cloudways and have an awesome GTmetrix report especially for a 2.56MB size and 89 requests. You won’t get that with Bluehost.
Table Of Contents
- Test Your Server Response Times
- Avoid Hitting Bluehost’s CPU Limits
- Upgrade To PHP 8.0
- Avoid High CPU Plugins
- Configure A Cache Plugin
- Remove Junk From Your Database
- Disable Heartbeat
- Activate Cloudflare
- Block Bad Bots
- Optimize Images
- Use Lightweight Plugins
- Avoid External Resources
- Host Google Fonts Locally
- Host Google Analytics Locally
- Switch To Faster Cloud Hosting
1. Test Your Server Response Times
You can check your server response times in GTmetrix:
Or in Lighthouse:
Slow server response times can also lead to 503 errors:
Unfortunately, this is pretty common with Bluehost:
2. Avoid Hitting Bluehost’s CPU Limits
|All Bluehost Shared Hosting Plans|
|Database Usage||5GB In Single Database|
3. Upgrade To PHP 8.0
Upgrading to a higher PHP version (in your cPanel) is one of the easiest ways to make your website faster while also reducing server response times. Bluehost now supports PHP 7.4.
4. Avoid High CPU Plugins
Too many plugins (or just 1 single high CPU plugin) can make or break your server response time (and load time). P3 used to be great at finding slow plugins, but now Query Monitor is best. Install the plugin and go to “Queries By Component” to view slowest loading plugins.
You can also use the GTmetrix Waterfall tab:
*Common culprits include related post, statistic, sitemap, chat, calendar, page builders, and plugins that run ongoing scans/processes or show high CPU in GTmetrix.
- AdSense Click Fraud Monitoring
- All-In-One Event Calendar
- Backup Buddy
- Beaver Builder
- Better WordPress Google XML Sitemaps
- Broken Link Checker
- Constant Contact for WordPress
- Contact Form 7
- Contextual Related Posts
- Digi Auto Links
- Disqus Comment System
- Divi Builder
- View Full List Of 73 Slow Plugins
5. Configure A Cache Plugin
If you’re going the free route, I recommend either Swift Performance or WP Fastest Cache, and I have tutorials for both Swift and WPFC. But if you can drop the $49, WP Rocket is much better, is what I use, and was rated the #1 cache plugin in multiple Facebook polls. But why?
WP Rocket comes with many features most cache plugins don’t. That means if you were to use most other cache plugins, you would need to install about 6 extra plugins. If you’re like me, you only want to use 1 plugin. This is why WP Rocket yields better scores + load times in GTmetrix/Pingdom (it has more features, while reducing the number of plugins on your site).
- Database cleanup (built-in to WP Rocket, or use WP-Optimize)
- Heartbeat control (built-in to WP Rocket, or use Heartbeat Control)
- Lazy load images/videos (built-in to WP Rocket, or use WP YouTube Lyte)
- Host Google Analytics locally (built-in to WP Rocket, or use CAOS For Analytics)
- Optimize Google Fonts (built-in to WP Rocket, or use CAOS For Fonts, or SHGF)
- Integration with Cloudflare + other CDNs (built-in to WP Rocket, or use CDN Enabler)
WP Rocket is #1 in most Facebook polls (click thumbnails to enlarge):
Most people do not configure their cache plugin correctly or take full advantage of it’s features. I highly recommend looking through my tutorials to make sure your setup is ideal.
- WP Rocket tutorial
- Swift Performance tutorial
- WP Fastest Cache tutorial
- W3 Total Cache tutorial
- WP Super Cache tutorial
6. Remove Junk From Your Database
Your database can accumulate junk files like deleted comments, spam comments, post revisions, expired transients, and other things that are causing your database to be bloated.
It’s best to clean your database about once every 1-2 weeks. You can use the WP-Optimize plugin to clean it, as well as schedule ongoing database cleanups. Just make sure you take a backup of your database before doing this, especially if this is your very first time cleaning it.
7. Disable Heartbeat
The WordPress heartbeat API shows real-time plugin notifications and that other users are editing a post. While this sounds nice, it also consumes server resources by creating a request every 15-30 seconds. Use the Heartbeat Control plugin and limit it, or disable it completely.
If using WP Rocket, you don’t need this plugin, as this is built-in:
8. Activate Cloudflare
A CDN (content delivery network) offloads resources to multiple data centers around the world. This put less stress on your server, but it also reduces the geographical distance between your server and visitor, and is a recommendation in the WordPress optimization guide. I recommend using Cloudflare which is a free CDN with 200+ data centers and there’s no reason you shouldn’t be using it. Cloudflare is only available on Bluehost’s share plan, while customers with VPS or a dedicated server will need to contact Bluehost and request it.
In your Bluehost cPanel, go to Domains > Cloudflare > Activate.
If you want to go the extra step, you can configure a few settings in your Cloudflare dashboard.
9. Block Bad Bots
You will never know if spam bots are hitting your site and consuming resources, unless you check. I found 2 spammy bots (compute.amazonaws.com and linode.com) were constantly hitting my site about every 3 seconds – I was spending server resources on literally nothing. Obviously Googlebot is OK, but you want to prevent spam bots from consuming resources.
Step 1: Install Wordfence.
Step 2: View your live traffic report (under Wordfence’s Tools settings). Look carefully for a solid minute to see which bots are hitting your site. If they look spammy, Google their hostname and see if other people are reporting them as spam. Make a list of all the spam bots.
Step 3: Go to Wordfence’s Blocking settings and add the spam bots here. Use asterisks to make sure you’re blocking all variations of that bot, otherwise this may not be effective.
Step 4: Go to your Blocking log and enjoy watching those spam bots get blocked.
If you don’t want to use Wordfence, the Blackhole For Bad Bots plugin does this automatically.
10. Optimize Images
There are 5 ways to optimize images in GTmetrix and PSI, but a total of 15 ways as explained in my image optimization tutorial.
Properly size images – resize large images to be smaller. For example, my blog width is 680px so I take screenshots and crop/resize images for those exact dimensions. Learn the different areas of your site (logo, sidebar, blog, features images, etc), then follow the correct dimensions.
Defer offscreen images – lazy load images which was built-in to WordPress 5.5 and above.
Efficiently encode images – losslessly compress images using a plugin like ShortPixel. You get 100 free credits each month (this is the my favorite image compression plugin and I have tried many including Imagify, Smush, EWW, and others). Install it, grab your API key from the ShortPixel website, then configure the settings. Set the image compression level to lossless. Go to your Media tab and optimize a couple images to make sure you’re happy with the quality. If you are, bulk compress all images on your site. I recommend taking a backup beforehand.
Serve images in next-gen formats – use a WebP plugin like ShortPixel of WebP Converter For Media to convert your JPEG/PNGs to WebP. It’s usually done using the
11. Use Lightweight Plugins
If you’re running high CPU plugins that cause slow server response times, you either need to delete them, or find alternative plugins that don’t consume as many resources. Here are some lightweight plugins I suggest, though in many cases, you need to do your own research/testing. View your Query Monitor report after installing EACH plugin to see how it impacts load times.
Backup – UpdraftPlus.
Comments – Disqus Conditional Load.
Analytics – Google Analytics and Search Console should be plenty. Just make sure you’re hosting Google Analytics locally (using WP Rocket, CAOS, or Perfmatters).
Page Builders – WordPress Page Builder by MotoPress, but no page builder runs faster than the native WordPress Editor. Combine this with the Duplicator plugin and you shouldn’t need a page builder (including page builders built-in to WordPress themes). Unless your team absolutely refuses to learn a little HTML (the easiest coding language), avoid page builders.
12. Avoid External Resources
External resources can come from Google Maps, Analytics, Gravatars, social sharing plugins, comment plugins, and other sources. These pull requests from external resources and will increase server response times and destroy your GTmetrix + Pingdom reports. Obviously it’s best to avoid external resources all together, but I also left some common solutions below.
- Gravatars – use WP User Avatar, Harrys Gravatar Cache, FV Gravatar Cache, Optimum Gravatar Cache. You can also disable Gravatars completely, or break comments and enable nested comment in your WordPress Discussion settings.
- Comment plugins – use the Disqus Conditional Load plugin.
- Social Sharing plugins – it’s really best to use a lightweight plugin for this.
- Google Maps – only use this on pages you absolutely need a Google Maps.
- Google AdSense – use Cloudflare Rocket Loader which helps with dynamic content.
Prefetch DNS Requests – if you absolutely HAVE to use external resources, prefetching them helps browser anticipate them so they can load faster. Luke created an amazing list of common domains to prefetch. Copy all these (or just the ones you need) and add them to your site (most cache plugins have an option for this). Also include your CDN URL if you’re using StackPath, KeyCDN, BunnyCDN, or another CDN (except for Cloudflare which doesn’t use CDN URLs).
13. Host Google Fonts Locally
If you see Google Font errors in your GTmetrix report, it means you need to host fonts locally.
Use can use the CAOS for Webfonts plugin:
Or Self-Hosted Google Fonts plugin is a good alternative, which automatically downloads all Google Fonts you’re using and adds them to your CSS, with having to configure any settings.
14. Host Google Analytics Locally
If you see Google Analytics errors in your GTmetrix report, it means you need to host your Google Analytics tracking code locally. The CAOS Analytics plugin does this automatically.
WP Rocket also has this feature.
15. Switch To Faster Cloud Hosting
I use Cloudways is who is #1 in most recent Facebook polls and my TTFB is consistently <200ms. I’m currently on their Vultr High Frequency plan, but DigitalOcean is good too. It’s $10-$13/month, but we’re talking about fast cloud hosting, not cheap hosting with slow TTFBs.
Instead of reading biased reviews, I encourage you to do your own research. Join Facebook Groups and look at polls, migration results, and conversations on “the best hosting” (shown below). Check out Backlinko’s PageSpeed Test where he found SiteGround had a slow TTFB. You already know GoDaddy and EIG brands (Bluehost + HostGator) are not good choices. WP Engine went downhill, Hostinger writes fake reviews, and NameCheap is mainly for domains.
People who moved to Cloudways and posted their results (click thumbnails to enlarge):
Why I use Cloudways:
- My TTFB is consistently <200ms
- The WordPress admin loads instantly
- Easier to pass web vitals on cloud hosting
- Monthly pricing and free 3-day trials are nice
- Server-level caching (Redis makes a big difference)
- They do a free migration and have a migrator plugin
- Support is fast/helpful as reflected in Trustpilot reviews
- Choice of 5 cloud hosts: DO, Vultr, AWS, Google Cloud, Linode
- They have a Cloudways Users Facebook Group to ask questions
- Only major con is no email hosting, but there’s an option for Rackspace
Affiliate Disclaimer – if you sign up for Cloudways with my affiliate link, thank you! Most affiliates recommend things only for commissions but I take mine seriously and support them with evidence. I also donate to GoFundMe campaigns and everything helps. They do free migrations but if you have questions about launching a server or anything else, you can reach out to me by leaving a comment. Cheers to a faster TTFB.
Frequently Asked Questions
How do I improve server response times?
Although you can lighten the load on your server with CDNs, upgrading PHP versions, and avoiding slow plugins, your server is ultimately controlled by your hosting. Unless your website is not optimized for speed whatsoever, you really shouldn't be getting server response time errors.
How do I lighten the load on my server?
Using a good cache plugin like WP Rocket, configuring it correctly (including adding a CDN), upgrading PHP versions, and avoiding resource hungry plugins and third party scripts (eg. AdSense) can help lighten the load on your server.
Will cache plugins improve server speed?
Yes, they should especially if you also use them to setup a CDN. Cache plugins should improve load times, GTmetrix scores, and server response times.
Do I really need to upgrade hosting?
First, optimize your site. Then if you still have slow server response times, upgrading plans or consider moving to a faster host like Cloudways.
Is it Bluehost's fault?
Many people have reported slow servers on Bluehost some people improve their load times by over 7 seconds when moving to another host. Cloudways (cloud hosting) is a popular choice and were rated highly in Facebook polls.
I hope this was helpful. If you have questions, drop me a comment.