Title: Footprint – Find what slows your site Author: ByUs Published: 2026년 7월 20일 Last modified: 2026년 7월 20일 --- 플러그인 검색 ![](https://ps.w.org/footprint/assets/banner-772x250.jpg?rev=3616219) ![](https://ps.w.org/footprint/assets/icon.svg?rev=3614484) # Footprint – Find what slows your site 작성자: [ByUs](https://profiles.wordpress.org/byus/) [다운로드](https://downloads.wordpress.org/plugin/footprint.0.23.1.zip) * [세부사항](https://ko.wordpress.org/plugins/footprint/#description) * [평가](https://ko.wordpress.org/plugins/footprint/#reviews) * [설치](https://ko.wordpress.org/plugins/footprint/#installation) * [개발](https://ko.wordpress.org/plugins/footprint/#developers) [지원](https://wordpress.org/support/plugin/footprint/) ## 설명 Footprint is a performance profiler that tells a WordPress administrator which plugins** and which theme** have the highest impact on the performance of a given page, and what to do about it. A lighter site is also a more sober site, both for your visitors and for the planet. Unlike profilers built for developers (Query Monitor, Code Profiler), Footprint is decision-oriented. In thirty seconds you should know: * which plugin or theme slows the page the most, * which one ships the heaviest JS/CSS, * which one issues the most SQL queries, * which one consumes the most memory, * which one calls external services, * whether the active theme has a meaningful footprint of its own, * what to optimise first. When you re-scan the same URL, the report shows what changed since the previous scan: score, server time, memory, SQL, external calls, and the components whose impact moved most. #### How it works Footprint runs a **differential scan**: it loads the target URL once with everything active (baseline) and once per plugin with that plugin disabled, for the duration of a single internal HTTP request only. The difference between the two runs gives a real measurement of that plugin’s footprint, not an estimation. A small must-use plugin loader performs the per-request swap. You install it in one click the first time you scan (it lives in `wp-content/mu-plugins/`, outside this plugin’s folder, and is removed on uninstall). Nothing is changed in your database. The whole report you see on screen is computed locally on your server: the per-component impact on time, memory, SQL and assets, the ranking of the heaviest components, and the optimization advice. The plugin is fully functional on its own. The only thing that needs the Footprint Pulse service is the A-E **Footprint Score**, which compares your result against the anonymized measurements of thousands of other sites and cannot be computed locally. #### Honesty about limits Footprint provides estimated measurements where exact attribution is impossible. WordPress loads the core, plugins and theme inside the same PHP process, which makes perfect per-plugin memory attribution unreliable. The differential scan greatly improves the signal but it is still subject to: * run-to-run variance (typically 5-15%), * dependency cascades (disabling a parent plugin can disable extensions of it), * page caches (a cached page bypasses PHP and yields no useful measurement), * opcode and object cache warm-up effects. The report flags any of these conditions when detected. #### Privacy Footprint includes a community ranking called **Footprint Pulse**. Sharing is ** on by default** and can be turned off any time in Settings. The plugin’s local report, per-component impact and recommendations work exactly the same either way. The only thing sharing adds is the community A-E Footprint Score described above. When sharing is enabled, after each scan the plugin sends to `https://www.wpfootprint. com`: * the slug and version of each measured plugin and the active theme, * time, memory and SQL counts attributed to each component (the same numbers shown on screen), * the number of scripts, styles and external HTTP calls each component added, * WordPress, PHP and MySQL versions, * an anonymous site identifier generated locally on your server. What is **not** sent: the URL of your pages, your content, visitor data, IP addresses, cookies, user accounts, database content, API keys, file paths, server hostnames. On first enrollment only, your domain is sent once so Pulse can call back into your WordPress AJAX endpoint to verify a cryptographic signature that proves you own the site. The domain is kept on the server for audit and re-verification, never displayed publicly, and never attached to your scans. * No tracking, no advertising, no third-party SDK. * The scan never modifies wp-config.php or your database content. * Visitors are never profiled: only signed admin-initiated scans collect data. * Turning sharing off stops the network call entirely; previously contributed measurements stay aggregated and anonymous. #### Third-party services This plugin transmits data to **Footprint Pulse** (`https://www.wpfootprint.com`), a service operated by ByUs for the purpose described in the Privacy section above. As stated above, sharing is enabled by default and can be turned off at any time from the in-plugin Settings panel. Disabling it stops the network call entirely. * Service URL: https://www.wpfootprint.com * Privacy policy: https://www.wpfootprint.com/privacy * Terms of service: https://www.wpfootprint.com/terms ## 스크린샷 [⌊Scan result: active plugins and the theme ranked by their real impact on the page, with the estimated time saved if each one is disabled.⌉⌊Scan result: active plugins and the theme ranked by their real impact on the page, with the estimated time saved if each one is disabled.⌉[ Scan result: active plugins and the theme ranked by their real impact on the page, with the estimated time saved if each one is disabled. [⌊The global score for the scanned page, alongside the A-E community grade that compares your result with other sites.⌉⌊The global score for the scanned page, alongside the A-E community grade that compares your result with other sites.⌉[ The global score for the scanned page, alongside the A-E community grade that compares your result with other sites. [⌊Per-component detail: server time, memory, database queries, JS / CSS weight and external calls.⌉⌊Per-component detail: server time, memory, database queries, JS/ CSS weight and external calls.⌉[ Per-component detail: server time, memory, database queries, JS / CSS weight and external calls. [⌊Each plugin's footprint, shown directly in the WordPress plugins list.⌉⌊Each plugin's footprint, shown directly in the WordPress plugins list.⌉[ Each plugin’s footprint, shown directly in the WordPress plugins list. [⌊After a second scan, the components that evolved most since the previous run.⌉⌊ After a second scan, the components that evolved most since the previous run.⌉[ After a second scan, the components that evolved most since the previous run. ## 설치 1. Upload the plugin to your `/wp-content/plugins/` directory. 2. Activate Footprint through the **Plugins** menu in WordPress. 3. Go to **Tools > Footprint** and click **Analyse the home page**, or enter an internal URL to scan. The first time you run a scan, Footprint asks you to install a small PHP file (a must-use plugin) into `wp-content/mu-plugins/` (outside the plugin folder). The file is shipped with the plugin, is added only after you click to confirm, is required for the differential scan, and is automatically removed when Footprint is deactivated. ## FAQ ### Is the differential scan safe to run on a production site? It performs only HTTP GET requests against your own URLs. No options or posts are modified. However, on a heavily used production site the burst of N+1 requests may briefly spike PHP-FPM workers and could be noticed by analytics. Running on staging is recommended. ### Why does my scan say “Cache detected”? Full-page caches (LiteSpeed Cache, Cloudflare APO, page-cache plugins of any kind, etc.) serve the response without invoking PHP, so per-request measurements are unavailable. Footprint detects this and warns you instead of presenting fake numbers. ### Why isn’t the per-plugin SQL count exact? The differential subtraction is approximate when plugins share triggers (for example, hitting a page that already cached its query plan). The numbers are good enough to rank plugins but should not be read as exact figures. ## 후기 ![](https://secure.gravatar.com/avatar/2ce24492279223e09e666c760384573bc045d78af32a1459b8fcf341f7ab56a1? s=60&d=retro&r=g) ### 󠀁[Nice idea and implementation](https://wordpress.org/support/topic/nice-idea-and-implementation/)󠁿 [Pär Thernström](https://profiles.wordpress.org/eskapism/) 2026년 8월 2일 I like it. [ 모든 1 평가 읽기 ](https://wordpress.org/support/plugin/footprint/reviews/) ## 기여자 & 개발자 “Footprint – Find what slows your site”(은)는 오픈 소스 소프트웨어입니다. 다음의 사람들이 이 플러그인에 기여하였습니다. 기여자 * [ ByUs ](https://profiles.wordpress.org/byus/) “Footprint – Find what slows your site”(이)가 1 개 언어로 번역되었습니다. 기여해 주셔서 [번역자](https://translate.wordpress.org/projects/wp-plugins/footprint/contributors) 님께 감사드립니다. [자국어로 “Footprint – Find what slows your site”(을)를 번역하세요.](https://translate.wordpress.org/projects/wp-plugins/footprint) ### 개발에 관심이 있으십니까? [코드 탐색하기](https://plugins.trac.wordpress.org/browser/footprint/)는, [SVN 저장소](https://plugins.svn.wordpress.org/footprint/) 를 확인하시거나, [개발 기록](https://plugins.trac.wordpress.org/log/footprint/)을 [RSS](https://plugins.trac.wordpress.org/log/footprint/?limit=100&mode=stop_on_copy&format=rss) 로 구독하세요. ## 변경이력 #### 0.23.1 * Clearer consent before installing the must-use helper: the prompt now states explicitly that a PHP file is added to wp-content/mu-plugins/. The file is shipped with the plugin, installed only after the admin clicks to confirm, and removed on uninstall. #### 0.23.0 * The full report (per-component time, memory, SQL and asset impact, ranking and advice) is now computed and shown locally on your server, with or without community sharing. The community A-E Footprint Score is the only part that uses the Footprint Pulse service. * The must-use measurement helper is no longer installed silently. The first scan asks for a one-time confirmation before writing it to wp-content/mu-plugins/. #### 0.22.12 * Renamed the “Time Δ” column to “Gain (ms)” with a help tooltip explaining that values are individual deltas and don’t add up, which is clearer for non-technical users. #### 0.22.9 * Initial public release. ## 기초 * 버전 **0.23.1** * 최근 업데이트: **4주 전** * 활성화된 설치 **200+** * 워드프레스 버전 ** 6.0 또는 그 이상 ** * 다음까지 시험됨: **7.0.4** * PHP 버전 ** 7.4 또는 그 이상 ** * 언어 * [English (US)](https://wordpress.org/plugins/footprint/) 및 [Spanish (Spain)](https://es.wordpress.org/plugins/footprint/). * [자국어로 번역하기](https://translate.wordpress.org/projects/wp-plugins/footprint) * 태그: * [Page Speed](https://ko.wordpress.org/plugins/tags/page-speed/)[performance](https://ko.wordpress.org/plugins/tags/performance/) [performance optimization](https://ko.wordpress.org/plugins/tags/performance-optimization/) [profiler](https://ko.wordpress.org/plugins/tags/profiler/)[speed](https://ko.wordpress.org/plugins/tags/speed/) * [고급 보기](https://ko.wordpress.org/plugins/footprint/advanced/) ## 평점 별 5점 만점에 5점. * [ 1/5-별점 후기 ](https://wordpress.org/support/plugin/footprint/reviews/?filter=5) * [ 0/4-별점 후기 ](https://wordpress.org/support/plugin/footprint/reviews/?filter=4) * [ 0/3-별점 후기 ](https://wordpress.org/support/plugin/footprint/reviews/?filter=3) * [ 0/2-별점 후기 ](https://wordpress.org/support/plugin/footprint/reviews/?filter=2) * [ 0/1-별점 후기 ](https://wordpress.org/support/plugin/footprint/reviews/?filter=1) [Your review](https://wordpress.org/support/plugin/footprint/reviews/#new-post) [모든 리뷰 보기](https://wordpress.org/support/plugin/footprint/reviews/) ## 기여자 * [ ByUs ](https://profiles.wordpress.org/byus/) ## 지원 할 말 있으신가요? 도움이 필요하신가요? [지원 포럼 보기](https://wordpress.org/support/plugin/footprint/)