Dragon Broken Links - Broken Link Checker & 404 Fixer
| 开发者 | dragoncoreltd |
|---|---|
| 更新时间 | 2026年9月25日 12:10 |
| PHP版本: | 8.0 及以上 |
| WordPress版本: | 7.1 |
| 版权: | GPL-2.0-or-later |
| 版权网址: | 版权信息 |
详情介绍:
Dragon Broken Links is a broken link checker that scans your posts, pages and every other public post type (WooCommerce products included) for links, images, embeds and media that no longer work, and lets you fix them without leaving WordPress. The checking runs on your own server - there is no third-party checking service, no account, no per-link credits and no monthly quota.
Why this one
Most broken-link plugins either meter the free version to a few hundred links a month or push the real checking into a paid cloud subscription. Dragon Broken Links does the opposite: internal and external checking is free and unlimited, and it is built to be a good citizen on your server and on the sites it checks.
What it checks
- Links, images, embeds and media in every published post, page, product and custom post type - including inside reusable (synced) patterns, wherever they sit in the layout - with no link limit. Narrow the list of post types under Settings if you want to.
- Internal links without touching your site - resolved against your database: links to deleted, trashed, unpublished or renamed content, and images missing from your uploads folder, are flagged instantly with no requests to your own server.
- External links politely - one request per unique URL no matter how many posts use it, a few at a time, never more than a handful to the same site in one go.
- A link is only marked Broken after a hard failure (404, 410, dead domain, connection refused) is confirmed on three separate checks.
- A first failure shows as Suspected and is re-checked before it counts.
- Ambiguous answers (bot-blocking 403s, rate limits, timeouts, server errors) go to Needs review, never counted as broken.
- Servers that refuse HEAD requests get a second, body-free GET before the answer counts.
- Edit a link's URL or remove the link (keeping its text) straight from the report - block-editor aware, so both the block data and the rendered HTML are updated together and the editor never reports invalid content.
- Dismiss a URL everywhere it appears, and restore it later from the Dismissed view.
- Re-check any single link on demand.
- Scan now with live progress, plus a background re-check every 15 minutes that works through every link on the cadence you choose - daily, weekly, monthly or never (a very large site, or slow hosts, can take longer).
- WP-CLI:
wp dragon-broken-links scan,listandrecheckfor large or headless sites.
- Email and signed-webhook alerts (Slack-compatible) on newly broken links.
- Bulk fixing and site-wide domain find-and-replace.
- Scheduled monitoring with history and CSV export.
- Scanning of links held in custom fields and comments.
安装:
- Install and activate the plugin from the Plugins screen, or upload the
dragon-broken-linksfolder to/wp-content/plugins/. - Go to Tools → Broken Links.
- Press Scan now. Links are re-checked automatically in the background afterwards.
屏幕截图:
常见问题:
Does it use an external service?
No. There is no cloud account, no API key, no per-link credits, and nothing is reported to Dragon Core or anyone else. The only outbound traffic is the request your server makes to each external link to see whether it still works (see "External services" above).
Is there a limit on links or scans?
No. Every unique URL is checked once per cycle, however many posts link to it, and there is no cap on links, posts or scans.
What is the difference between Broken, Suspected and Needs review?
Broken - failed on three separate checks with a hard error (404, 410, no such domain, connection refused). Suspected - failed once; it is re-checked before it counts as broken. Needs review - the site answered but ambiguously (403, 429, timeout, server error), which is often bot-blocking rather than a dead page; open it, and dismiss it if it works.
Why is a working link shown as "Needs review"?
Some servers answer automated requests with a 403, 429 or a timeout even though the page is fine for real visitors. Rather than cry wolf, Dragon Broken Links flags those for you to decide, and never counts them as broken automatically.
Will checking links slow down or overload my site?
No. External links are checked in small, throttled batches within a fixed time budget, and each unique URL is checked only once. Internal links are resolved from the database rather than by making requests to your own site.
Does it check images?
Yes - <img> sources, plus iframes, video, audio and embeds in your posts and pages. Internal images are checked against the uploads folder (including resized variants); external ones are requested like any other link. Gallery thumbnails and srcset variants of an image that exists are not checked separately.
Can I schedule scans?
Links are re-checked automatically in the background (every 15 minutes, working through every link daily, weekly or monthly - your choice under Settings), and a post is re-scanned whenever you save it. Scheduled full scans with history and CSV export are part of Pro.
Does it scan WooCommerce products and custom post types?
Yes. Every public post type is scanned by default - posts, pages, WooCommerce products and any custom post type your theme or plugins register. Untick the ones you do not want under Settings → Content scanned.
Does it scan comments or custom fields?
Not on its own: links in comments and custom fields are covered by Dragon Broken Links Pro.
I'm coming from Broken Link Checker - can I keep my dismissed links?
Yes. If Broken Link Checker's data is still in your database, Settings → Import from Broken Link Checker carries your dismissed links over so you do not have to re-triage them. Nothing is removed from Broken Link Checker.
My scan does not seem to run on its own.
Background scanning uses WP-Cron, which only runs when your site gets traffic. On a quiet site, click Scan now, or run wp dragon-broken-links scan from WP-CLI.
Does editing a link change my content safely?
Yes. Fixes are applied through the block parser, updating both the block data and the rendered HTML together, so the editor never reports invalid content. Classic (non-block) content is handled too, and every fix creates a revision you can restore from.
Does it work on multisite?
Yes, per site: each site keeps its own report, settings and background re-check.
更新日志:
1.1.10
- Internal links and images are no longer held to the per-host limit meant for external sites, so large sites are checked much faster.
- Links inside synced patterns are found inside layout blocks, and can be fixed from the report.
- Excluded links are reviewed again when an exclusion rule is lifted, and links no post contains any more are removed.
- Tab counts now match the listed links.
- Every screen, email and alert is now translatable, so community translations from translate.wordpress.org cover the whole plugin. Counts use proper plural forms, and numbers and dates follow your site's language.
- Scan progress reads naturally in every language.
- Corrected the readme: Dragon Broken Links Pro is an annual licence, not a one-time purchase. No code changes.
- An "Upgrade to Pro" link on the Plugins screen, a one-line pointer at the foot of the plugin's own screens, and a single dismissible note once the plugin has done its job. All three disappear when the Pro add-on is active; nothing in the free plugin is locked or changed.
- The Pro card on the settings screen is hidden once Pro is active.
- Fixed: when a redirect chain sets a #fragment on one hop and a later hop has none, the fragment is now carried to the final address as RFC 9110 requires (/start redirected to /middle#new and then to /target is recorded as /target#new). Fragments are never sent to the server.
- Thanks to Mike Kuketz (kuketz-blog.de) for the report.
- Fixed: Edit link and Remove link only touch real href and src attributes. Attributes such as data-href, data-src and xlink:href were also matched and could be changed.
- Fixed: Edit link and Remove link match the URL value case-sensitively. Two links differing only in letter case are no longer both changed when only one was chosen.
- Fixed: relative redirect targets (Location headers such as ?x=1, #section, ./page or ../page) are resolved per RFC 3986, so the redirect is followed to the right address.
- Fixed: when WordPress refuses to save the updated post, the fix is reported as failed instead of as done.
- Thanks to Mike Kuketz (kuketz-blog.de) for reporting all four.
- Asks for a WordPress.org review once, only on the Broken Links screen and only after a scan has finished or a link has been fixed. "Maybe later" snoozes it for a month and "No thanks" is permanent.
- Listing title, description and tags now say what the plugin does, so it is easier to find in the plugin directory.
- New: every public post type is scanned - WooCommerce products and custom post types included - with a checklist under Settings to narrow it down.
- New: the background re-check cadence is a setting: daily, weekly, monthly or never.
- Changed: sites updating from 1.1.2 re-read all content on the next scan so the newly covered post types are picked up.
- Copy: plainer punctuation throughout the report, settings and documentation.
- Report: the status key is now three labelled pills instead of a paragraph, so Broken / Suspected / Needs review are recognisable at a glance.
- Report: dismissed and not-yet-checked rows get a neutral pill.
- Fixed: editing or removing a link could corrupt the other blocks in that post (JSON escapes in block attributes such as
&,--or backslashes lost their backslash on save). Every fix is now saved exactly as the editor would. - Fixed: dismissed links (including those imported from Broken Link Checker) were forgotten when the post containing them was next edited.
- Fixed: a link to a domain that no longer exists was reported as "needs review" instead of broken.
- Fixed: "Remove link" did nothing for URLs containing a query string.
- Fixed: "Create redirect" on a query-style link (/?p=123) would have redirected the homepage; such links now explain why they cannot be redirected.
- Fixed: switching the weekly re-check back on after turning it off left every already-checked link never re-checked.
- New: internal links to deleted, trashed, draft or renamed pages are now detected (old slugs are followed), and internal images missing from the uploads folder are flagged - all from the database, with no requests to your own site.
- New: iframes, video, audio, embeds and reusable (synced) patterns are scanned.
- New: Dismissed view with a Restore action; the report shows counts per view, a plain-English reason for every link, a status legend and a proper first-run message.
- Improved: background re-checks now run every 15 minutes within a fixed time budget, so sites with many thousands of links get through them in about a week; "Scan now" always re-reads every post, never runs two scans at once, and shows which phase it is in.
- Improved: servers that refuse HEAD get a body-free GET before the answer counts, reducing false "needs review" results.
- Security: the connection is pinned to the address that passed the private-network check, closing a DNS-rebinding window; multicast, NAT64, 6to4, Teredo, documentation and benchmark ranges are refused; a redirect back onto your own site is never followed; no more than 64 KB of any response is read.
- Housekeeping: the manual scan stays inside PHP's time limit; the uninstall opt-in now removes every trace; the cron event self-heals on sites that never ran the activation hook.
- Critical fix: the admin area could show a fatal error on sites running 1.0.4–1.0.7 because the Broken Link Checker import helper was not being loaded. Every admin screen now loads correctly. Please update straight away.
- Reliability: the background re-check now stops within a fixed time budget so a large backlog can never overrun a single cron run.
- Compatibility: tested up to WordPress 7.1.
- Housekeeping: corrected the contributor name in the plugin readme.
- Documentation: clarified that link checking requests external URLs from your server while using no third-party service.
- Data safety: uninstalling the plugin no longer deletes its data unless you explicitly opt in first (new setting under Settings) - a reinstall now picks up exactly where you left off.
- New: one-click import of your dismissed links from Broken Link Checker, so a site switching over does not have to re-triage.
- Polish: one-row toolbar (scan, status, filters and search together), always-visible row actions, segmented filter control, more breathing room under the admin bar, and severity markers that now survive WordPress core's last-row style. Grammar fix in the scan summary.
- New look: the report and settings now wear the Dragon design system - clearer status pills with reason codes, severity markers on rows, monospace URLs, and a consistent Dragon Core header. No behaviour changes.
- Added a filter so Dragon Broken Links Pro can scan additional content sources such as custom fields and comments.
- Initial release.