Rewizja wordpress + fastcgi cache.md

xl zrewidował ten Gist 1 month ago. Przejdź do rewizji

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wordpress + fastcgi cache.md

			@@ -6,7 +6,6 @@ This guide assumes you're using:
6	6		- PHP-FPM
7	7		- WordPress
8	8		- Linux (Ubuntu/Debian)
9		-	test
10	9		---
11	10
12	11		## 🔧 Step-by-Step: Full Page Caching with Nginx (FastCGI Cache)

xl zrewidował ten Gist 1 month ago. Przejdź do rewizji

1 file changed, 1 insertion, 1 deletion

wordpress + fastcgi cache.md

			@@ -6,7 +6,7 @@ This guide assumes you're using:
6	6		- PHP-FPM
7	7		- WordPress
8	8		- Linux (Ubuntu/Debian)
9		-
	9	+	test
10	10		---
11	11
12	12		## 🔧 Step-by-Step: Full Page Caching with Nginx (FastCGI Cache)

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1 file changed, 4 deletions

wordpress + fastcgi cache.md

			@@ -153,7 +153,3 @@ sudo rm -rf /var/cache/nginx/wordpress/*
153	153		\| 300–800ms TTFB \| 50–100ms TTFB \|
154	154		\| High CPU/PHP usage \| Very low CPU usage \|
155	155		\| DB load under traffic\| Minimal DB activity \|
156		-
157		-	---
158		-
159		-	Would you like a ready-to-use Nginx config block or a purge solution recommendation next?

xl zrewidował ten Gist 8 months ago. Przejdź do rewizji

1 file changed, 159 insertions

wordpress + fastcgi cache.md (stworzono plik)

		@@ -0,0 +1,159 @@
1	+	Absolutely! Implementing full-page caching with Nginx is one of the most powerful ways to dramatically boost WordPress performance, especially for high-traffic sites like yours (1k sustained users).
2	+
3	+	This guide assumes you're using:
4	+
5	+	- Nginx (not Apache)
6	+	- PHP-FPM
7	+	- WordPress
8	+	- Linux (Ubuntu/Debian)
9	+
10	+	---
11	+
12	+	## 🔧 Step-by-Step: Full Page Caching with Nginx (FastCGI Cache)
13	+
14	+	---
15	+
16	+	### ✅ 1. Prepare Directories
17	+
18	+	Create a directory for cached pages:
19	+
20	+	```bash
21	+	sudo mkdir -p /var/cache/nginx/wordpress
22	+	sudo chown -R www-data:www-data /var/cache/nginx
23	+	```
24	+
25	+	---
26	+
27	+	### 🧠 2. Understand the Cache Key
28	+
29	+	Nginx will cache based on:
30	+	- URI
31	+	- Host
32	+	- Request method (GET/POST)
33	+	- Cookies (important for logged-in vs public users)
34	+
35	+	---
36	+
37	+	### ⚙️ 3. Nginx Configuration
38	+
39	+	Open your Nginx server block (e.g., `/etc/nginx/sites-available/yourdomain.com`) and make the following changes:
40	+
41	+	#### a. Enable the cache zone
42	+
43	+	Add this at the top of the file (outside the server block):
44	+
45	+	```nginx
46	+	fastcgi_cache_path /var/cache/nginx/wordpress levels=1:2 keys_zone=WORDPRESS:100m inactive=60m use_temp_path=off;
47	+	fastcgi_cache_key "$scheme$request_method$host$request_uri";
48	+	```
49	+
50	+	#### b. Inside your `server {}` block
51	+
52	+	Insert the following:
53	+
54	+	```nginx
55	+	set $no_cache 0;
56	+
57	+	# Don't cache POST requests or certain URIs
58	+	if ($request_method = POST) {
59	+	set $no_cache 1;
60	+	}
61	+	if ($query_string != "") {
62	+	set $no_cache 1;
63	+	}
64	+
65	+	# Don't cache logged-in users or recent commenters
66	+	if ($http_cookie ~* "comment_author_\|wordpress_logged_in_\|wp-postpass_") {
67	+	set $no_cache 1;
68	+	}
69	+	```
70	+
71	+	#### c. Inside your `location ~ \.php$` block
72	+
73	+	Modify it to include FastCGI caching:
74	+
75	+	```nginx
76	+	location ~ \.php$ {
77	+	include snippets/fastcgi-php.conf;
78	+	fastcgi_pass unix:/run/php/php8.2-fpm.sock;
79	+
80	+	fastcgi_cache WORDPRESS;
81	+	fastcgi_cache_bypass $no_cache;
82	+	fastcgi_no_cache $no_cache;
83	+	fastcgi_cache_valid 200 301 302 60m;
84	+
85	+	add_header X-FastCGI-Cache $upstream_cache_status;
86	+
87	+	fastcgi_cache_use_stale error timeout invalid_header http_500;
88	+	}
89	+	```
90	+
91	+	This will:
92	+	- Cache pages for 60 minutes
93	+	- Avoid caching for logged-in users and POST requests
94	+	- Add a response header like `X-FastCGI-Cache: HIT` or `MISS`
95	+
96	+	---
97	+
98	+	### 💡 4. Purge Cache (Optional)
99	+
100	+	Nginx FastCGI Cache does not automatically purge pages when WordPress content is updated.
101	+
102	+	Options:
103	+
104	+	- Use [`nginx-cache-purge`](https://github.com/FRiCKLE/ngx_cache_purge) module (requires recompiling Nginx)
105	+	- Use a plugin like [Nginx Cache](https://wordpress.org/plugins/nginx-helper/) which works well with Redis or FastCGI:
106	+	```php
107	+	define('RT_WP_NGINX_HELPER_CACHE_PATH', '/var/cache/nginx/wordpress');
108	+	define('RT_WP_NGINX_HELPER_LOG_PATH', '/var/log/nginx/wordpress-helper.log');
109	+	```
110	+
111	+	---
112	+
113	+	### ✅ 5. Reload Nginx
114	+
115	+	```bash
116	+	sudo nginx -t
117	+	sudo systemctl reload nginx
118	+	```
119	+
120	+	---
121	+
122	+	## 🧪 6. Test It
123	+
124	+	- Open a browser → Visit your homepage
125	+	- Run:
126	+	```bash
127	+	curl -I https://yourdomain.com
128	+	```
129	+
130	+	You should see:
131	+	```http
132	+	X-FastCGI-Cache: HIT
133	+	```
134	+
135	+	Try again after logging in to WordPress. You should see:
136	+	```http
137	+	X-FastCGI-Cache: BYPASS
138	+	```
139	+
140	+	---
141	+
142	+	## 🔍 7. Optional: Clear Cache Manually
143	+	```bash
144	+	sudo rm -rf /var/cache/nginx/wordpress/*
145	+	```
146	+
147	+	---
148	+
149	+	## 🚀 Performance Gains
150	+
151	+	\| Without Cache \| With Nginx FastCGI Cache \|
152	+	\|---------------------\|--------------------------\|
153	+	\| 300–800ms TTFB \| 50–100ms TTFB \|
154	+	\| High CPU/PHP usage \| Very low CPU usage \|
155	+	\| DB load under traffic\| Minimal DB activity \|
156	+
157	+	---
158	+
159	+	Would you like a ready-to-use Nginx config block or a purge solution recommendation next?

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