WordPressサイト表示高速化のため、.htaccessにコードを記述し、Gzip圧縮とブラウザキャッキュを有効化していきます。Apacheサーバのみ有効です。

コード

# MIME Type 追加

	AddType text/cache-manifest .appcache
	AddType image/x-icon .ico
	AddType image/svg+xml .svg
	AddType application/x-font-ttf .ttf
	AddType application/x-font-woff .woff
	AddType application/x-font-woff2 .woff2
	AddType application/x-font-opentype .otf
	AddType application/vnd.ms-fontobject .eot



	# プロキシキャッシュの設定 (画像とフォントをキャッシュ)	
	Header set Cache-Control "max-age=604800, public"
	

	# プロキシサーバーが間違ったコンテンツを配布しないようにする
	Header append Vary Accept-Encoding env=!dont-vary

	# セキュリティ向上策
	Header set X-Frame-Options SAMEORIGIN
	Header set X-Content-Type-Options "nosniff"
	Header set X-XSS-Protection "1; mode=block"

	# Enable Keep-Alive を設定
	
		SetEnv KeepAlive On
		SetEnv KeepAliveTimeout 15
		SetEnv MaxKeepAliveRequests 100
	
	Header unset Connection
	#Header set Connection keep-alive

	# ETags(Configure entity tags) を無視する設定
	Header unset ETag

	# ブラウザキャッシュの設定
	
		ExpiresActive On

		# キャッシュ初期化 (1秒に設定)
		ExpiresDefault "access plus 1 seconds"

		# MIME Type ごとの設定
		ExpiresByType text/css "access plus 1 month"
		ExpiresByType text/js "access plus 1 month"
		ExpiresByType text/javascript "access plus 1 month"
		ExpiresByType image/gif "access plus 1 month"
		ExpiresByType image/jpeg "access plus 1 month"
		ExpiresByType image/png "access plus 1 month"
		ExpiresByType image/webp "access plus 1 month"
		ExpiresByType image/svg+xml "access plus 1 year"
		ExpiresByType font/woff "access plus 1 year"
		ExpiresByType font/woff2 "access plus 1 year"
		ExpiresByType application/x-font-woff "access plus 1 year"
		ExpiresByType application/pdf "access plus 1 month"
		ExpiresByType application/json "access plus 1 month"
		ExpiresByType application/javascript "access plus 1 month"
		ExpiresByType application/x-javascript "access plus 1 month"
		ExpiresByType application/x-shockwave-flash "access plus 1 month"
		ExpiresByType application/font-woff "access plus 1 year"
		ExpiresByType application/x-font-woff "access plus 1 year"
		ExpiresByType application/font-woff2 "access plus 1 year"
		ExpiresByType application/x-font-woff2 "access plus 1 year"
		ExpiresByType application/x-font-ttf "access plus 1 year"
		ExpiresByType application/x-font-opentype "access plus 1 year"
		ExpiresByType application/vnd.ms-fontobject "access plus 1 year"
	

FileETag None

# Gzip圧縮の設定

	SetOutputFilter DEFLATE

	# 古いブラウザでは無効
	BrowserMatch ^Mozilla/4\.0[678] no-gzip
	BrowserMatch ^Mozilla/4 gzip-only-text/html
	BrowserMatch \bMSIE\s(7|8) !no-gzip !gzip-only-text/html

	# 画像など圧縮済みのコンテンツは再圧縮しない
	SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png|ico|eot|woff|woff2)$ no-gzip dont-vary

	AddOutputFilterByType DEFLATE text/plain
	AddOutputFilterByType DEFLATE text/html
	AddOutputFilterByType DEFLATE text/xml
	AddOutputFilterByType DEFLATE text/css
	AddOutputFilterByType DEFLATE text/js
	AddOutputFilterByType DEFLATE image/svg+xml
	AddOutputFilterByType DEFLATE application/json
	AddOutputFilterByType DEFLATE application/xml
	AddOutputFilterByType DEFLATE application/xhtml+xml
	AddOutputFilterByType DEFLATE application/rss+xml
	AddOutputFilterByType DEFLATE application/atom_xml
	AddOutputFilterByType DEFLATE application/javascript
	AddOutputFilterByType DEFLATE application/x-javascript
	AddOutputFilterByType DEFLATE application/x-httpd-php
	AddOutputFilterByType DEFLATE application/x-font-ttf
	#AddOutputFilterByType DEFLATE application/x-font-woff
	#AddOutputFilterByType DEFLATE application/x-font-woff2
	AddOutputFilterByType DEFLATE application/x-font-opentype
	#AddOutputFilterByType DEFLATE application/vnd.ms-fontobject