WP Ghost can improve your site’s speed in measurable ways. Disabling the WordPress emoji library alone removes about 15-20 KB of render-blocking JavaScript and CSS and an external DNS lookup from every page. Disabling embed scripts and the WLW manifest cuts more unnecessary resources. The 7G/8G Firewall blocks bot traffic at the server level before PHP loads, which frees up PHP workers for real visitors. WP Ghost itself adds only about 0.05 seconds per request. On sites under bot pressure, these savings can add up to noticeable performance gains in Google PageSpeed Insights and Core Web Vitals scores.
The Three Ways WP Ghost Speeds Up Your Site
Speed gains come from three distinct mechanisms: removing unnecessary front-end resources WordPress loads by default, blocking bot traffic at the server level before it can consume PHP, and optimizing how assets are served. Each mechanism is a toggle you control, you pick which speed optimizations to apply.
1. Removing Unnecessary Front-End Resources
WordPress loads several scripts and libraries on every page whether you use them or not. Most sites do not need them, and removing them cuts both page weight and render-blocking delays.
| Resource Removed | Savings Per Page | What It Is |
|---|---|---|
| WordPress Emoji (Twemoji) script | 15-20 KB, 1 DNS lookup, 1 HTTP request | Inline JavaScript and CSS plus external script from s.w.org, used to render emojis on pre-2015 browsers |
| DNS prefetch tags for w.org | 1 DNS pre-resolution | Only useful when emoji script loads (becomes redundant once emoji is disabled) |
| Embed scripts and oEmbed discovery endpoint | 3-5 KB plus endpoint request | Auto-embed library, rarely used on most sites |
| Windows Live Writer (WLW) manifest | Small, but adds an unnecessary HTTP response | Legacy support for a blog editor Microsoft discontinued in 2017 |
| Generator meta, version tags, source comments | Small, but removes fingerprints plus a few bytes per page | WordPress metadata that reveals your version |
Enable these under WP Ghost > Tweaks > Hide Options and Disable Options. The emoji removal alone is often the biggest single win on sites that never use emojis, it is flagged as render-blocking JavaScript by Google PageSpeed Insights, and removing it can visibly move your score.
2. Blocking Bot Traffic Before PHP Loads
This is the bigger win for sites on shared or modest hosting, because it directly affects how fast real visitors see your site.
WordPress sites under bot attack (and most WordPress sites are, whether you notice or not) receive dozens or hundreds of malicious requests per minute: scans for /wp-login.php, probes for known-vulnerable plugin paths, brute force attempts, XML-RPC abuse, SQL injection tests on form parameters. Each one of those requests, on a default WordPress install, loads PHP, boots WordPress, hits the database, consumes memory, occupies a PHP-FPM worker, and only then gets rejected. If your host has 5 or 10 PHP workers (typical on shared hosting), a bot flood can saturate them all, leaving real visitors waiting in queue.
WP Ghost’s 7G and 8G Firewall runs at the server level through .htaccess rules on Apache and LiteSpeed, or during early initialization on Nginx. Malicious requests are rejected with a 403 before PHP or WordPress start. That means:
Bot traffic costs almost zero server resources. The rejected request consumes a few CPU cycles at the web server level, not a full PHP worker. Your server breathes easier.
Real visitors get faster response times. With PHP workers freed from handling bots, real requests are served faster. On sites under heavy attack, this can be the difference between 2-second and 10-second page loads for legitimate users.
Path security compounds the effect. When the login URL is hidden (404 on /wp-login.php), bots do not even try the login brute force against your actual URL, they give up after a few 404s and move to the next target. Less attack volume means less work for your server.
3. WP Ghost Itself Is Lightweight
Unlike security plugins that run heavy real-time malware scanners, live traffic monitors, or database-intensive integrity checks on every request, WP Ghost works primarily through server-level rewrite rules. Most of the protective work happens in .htaccess (or equivalent on Nginx), not in PHP. The plugin itself adds roughly 0.05 seconds per request.
Put differently: WP Ghost’s overhead is smaller than the typical benefit it provides from removing emoji scripts alone. Net performance impact on almost every site is positive. For the detailed answer, see the loading speed FAQ.
What to Enable for Maximum Speed Benefit
- Hide Emojicons (WP Ghost > Tweaks > Hide Options). Biggest single win for most sites. Removes 15-20 KB of render-blocking JS/CSS per page.
- Hide DNS Prefetch META Tags (WP Ghost > Tweaks > Hide Options). Redundant once emojis are disabled.
- Disable Embed Scripts (WP Ghost > Tweaks > Disable Options). Cuts the oEmbed discovery endpoint and embed.js load.
- Disable WLW Manifest (WP Ghost > Tweaks > Disable Options). Removes legacy Windows Live Writer support most sites never use.
- Activate the 7G or 8G Firewall (WP Ghost > Firewall). Blocks bot traffic at the server level, freeing PHP workers.
- Change login and admin paths (WP Ghost > Change Paths). Hides login URL so brute force bots hit 404 instead of firing up WordPress.
- Automate IP Blocking (WP Ghost > Firewall). Persistent offenders get banned, so their traffic stops hitting your server entirely.
Measuring the Impact
Before and after comparison: run Google PageSpeed Insights or GTmetrix on your site before enabling these options, then again after. Focus on these metrics:
Total Blocking Time (TBT) and Largest Contentful Paint (LCP). Removing render-blocking scripts (emoji, embed) directly improves both. These are Core Web Vitals that influence Google ranking.
Transferred bytes. Page weight drops by 15-25 KB per page after removing emoji, embed, and WLW. Multiplied across hundreds of page views per day, this is meaningful bandwidth savings.
DNS lookups and HTTP requests. Both go down. Fewer external resources to fetch means faster page loads, especially on mobile networks.
Server response time (TTFB). On sites under bot pressure, TTFB improvements after enabling the firewall and path security are often dramatic, sometimes halving response times during attack periods.
Frequently Asked Questions
How much can WP Ghost improve my site speed?
The exact gain depends on your starting point and how many speed-focused features you enable. Typical wins: 15-25 KB of render-blocking resources removed per page (from disabling emoji, embed, and WLW), 1-2 fewer DNS lookups, and measurable TTFB improvement on sites under bot pressure. On Google PageSpeed Insights, most sites see a 2-5 point improvement just from removing the emoji script.
Will disabling emojis break anything on my site?
No. Modern browsers and operating systems render emojis natively (Chrome, Firefox, Safari, Edge, iOS, Android all handle them). The Twemoji library only mattered for pre-2015 browsers, which is a tiny sliver of real traffic today. Your emojis will still display correctly for essentially every visitor.
Does WP Ghost slow down my site?
No, in almost every case the net performance impact is positive. WP Ghost itself adds about 0.05 seconds per request, but removing the emoji script alone saves more than that, and the server-level firewall actively speeds up sites under bot attack by freeing PHP workers. Full analysis in the loading speed FAQ.
Does WP Ghost work with caching plugins like WP Rocket or LiteSpeed Cache?
Yes. WP Ghost is compatible with all major caching plugins (WP Rocket, LiteSpeed Cache, W3 Total Cache, WP Super Cache, Hummingbird, Breeze). Enable Change Paths in Cached Files under WP Ghost > Tweaks so your custom paths survive cache regeneration. See the Change Paths in Cached Files guide and the compatibility plugins list.
Will WP Ghost improve Core Web Vitals scores?
Often yes. Removing render-blocking resources (emoji script, embed scripts) directly improves Total Blocking Time and Largest Contentful Paint, which are two of the three Core Web Vitals Google uses for ranking. The magnitude depends on what else your site loads, but the change is usually positive and measurable.
Does blocking bot traffic affect SEO or Googlebot?
No. WP Ghost automatically whitelists major search engine crawlers (Googlebot, Bingbot, Yandex) when the firewall is active. Legitimate crawlers access and index your site normally. Only malicious bots and scrapers are blocked.
Does WP Ghost modify WordPress core files?
No. WP Ghost deregisters scripts through WordPress hooks at runtime and writes firewall rules to .htaccess (Apache/LiteSpeed) or hidemywp.conf (Nginx). No core files are modified. Disabling any feature or deactivating the plugin restores the original behavior instantly.