Old URLs ending in ".html" are 404s; should they redirect instead?

[ExplodingCabbage]

Via the Wayback Machine, I see that https://expressjs.com/en/advanced/best-practice-performance.html was a valid URL less than a month ago. Now it is a 404 page. It looks like the content that was once there is now located at https://expressjs.com/en/advanced/best-practice-performance/ instead.

Okay, fine, but this is super-unhelpful to me as a (first-time) end user. Google results currently link me exclusively to the 404 pages, and from a quick sample I would guess that every single one of the 2500 links to the Express docs on Stack Overflow is now a dead link. (I would also not be surprised if this were an incredibly potent act on anti-SEO; I don't know if historical pagerank will flow to the new docs URLs. It would be unfortunate if the official docs dropped off the Google results for Express-related searches as a result!)

I have not carefully dug into the recent changes that led to this, but is it not possible to simply have URLs ending in .html redirect to fix it?

[ExplodingCabbage]

(Presumably this resulted from the new website I think you launched yesterday? I would consider this to be on-fire-priority, given the potentially permanent SEO implications of not addressing it quickly.)

[krzysdz]

Yes, it should be possible to redirect them. I'll try to do this in a few hours, maybe separately from #2324.

See also #2327, #2328

[jonchurch]

Thanks for the report, I thought we had taken care of this but apparently not

I have not carefully dug into the recent changes that led to this, but is it not possible to simply have URLs ending in .html redirect to fix it?

This is something we can fix with Cloudflare Redirect Rules as a quick mitigation, working on it now

[jonchurch]

This is live now in cloudflare, the .html stripping

We may want to re evaluate this, the directory style we ahve now is the astro default, we could also configure astro to format urls in file mode, to get back to the exact structure we had previously and not require CDN level redirs.

Please let us know if you notice a .html related 404!

[ExplodingCabbage]

I used SEDE to download a CSV of the bodies of Stack Overflow posts containing the text expressjs.com, very crudely & lazily attempted to pull all the URLs out of the resulting CSV, then tested them all to see what status code each returns. Lots of 404s, but they all seem to be URLs lacking a language code in the URL; is making that a mandatory part of the URL also a recent change?

Full table of results (sorry, doesn't seem like I can hide a table inside spoiler/details markup on GitHub)

URL	Status
http://expressjs.com/en/api.html#res.redirect	200
https://expressjs.com/en/api.html#res.end	200
http://expressjs.com/en/resources/middleware/body-parser.html	200
http://expressjs.com/en/api.html#req.query	200
http://expressjs.com/en/4x/api.html#req.secure	200
http://expressjs.com/en/guide/using-middleware.html	200
http://expressjs.com/en/4x/api.html#res.redirect	200
https://expressjs.com/en/api.html#req.query	200
http://expressjs.com/en/guide/migrating-4.html#app-gen	200
http://expressjs.com/en/4x/api.html#router.METHOD	200
http://expressjs.com/en/api.html#req.originalUrl	200
https://expressjs.com/en/guide/routing.html#express-router	200
http://expressjs.com/en/4x/api.html#res.json	200
http://expressjs.com/en/api.html#req.param	200
https://expressjs.com/es/guide/routing.html#express-router	200
https://expressjs.com/fr/api.html#req.query	200
http://expressjs.com/en/4x/api.html#app.use	200
https://expressjs.com/en/api.html#app.use	200
http://expressjs.com/en/4x/api.html#res.send	200
http://expressjs.com/en/4x/api.html#app.listen	200
http://expressjs.com/en/5x/api.html#req.query	200
http://expressjs.com/en/4x/api.html#app.get	200
http://expressjs.com/en/api.html#res	200
http://expressjs.com/en/api.html#express	200
https://expressjs.com/en/api.html#router.use	200
http://expressjs.com/en/api.html#res.format	200
http://expressjs.com/en/api.html#app	200
http://expressjs.com/en/resources/middleware/vhost.html	200
https://expressjs.com/en/4x/api.html#app.route	200
https://expressjs.com/en/api.html#app.locals	200
http://expressjs.com/en/api.html#res.sendFile	200
https://expressjs.com/en/5x/api.html#res.format	200
http://expressjs.com/en/5x/api.html#res.send	200
http://expressjs.com/en/4x/api.html#res.download	200
http://expressjs.com/en/api.html#express.static	200
https://expressjs.com/en/4x/api.html#router.route	200
http://expressjs.com/en/api.html#router.route	200
https://expressjs.com/es/api.html#req.params	200
https://expressjs.com/en/5x/api.html#req	200
https://expressjs.com/en/starter/installing.html	200
https://expressjs.com/pt-br/api.html#app.listen	200
https://expressjs.com/en/4x/api.html#path-examples	200
http://expressjs.com/es/	200
http://expressjs.com/en/5x/api.html#req.params	200
http://expressjs.com/en/api.html#req.get	200
https://expressjs.com/en/4x/api.html#req.ip	200
http://expressjs.com/en/api.html#res.send	200
https://expressjs.com/en/api.html#res.json	200
http://expressjs.com/fr/api.html#res.redirect	200
https://expressjs.com/de/starter/static-files.html	200
https://expressjs.com/en/guide/migrating-5.html#rejected-promises	200
http://expressjs.com/en/4x/api.html#res.format	200
http://expressjs.com/en/guide/error-handling.html	200
http://expressjs.com/en/api.html#app.render	200
http://expressjs.com/en/5x/api.html#res.locals	200
http://expressjs.com/en/api.html#req.secure	200
https://expressjs.com/en/4x/api.html#res.set	200
https://expressjs.com/en/api.html#res.headersSent	200
http://expressjs.com/de/	200
http://expressjs.com/en/4x/api.html#res.set	200
http://expressjs.com/en/4x/api.html#app.route	200
http://expressjs.com/en/4x/api.html#req.originalUrl	200
http://expressjs.com/en/api.html#res.attachment	200
http://expressjs.com/en/guide/using-middleware.html#middleware.built-in	200
http://expressjs.com/en/4x/api.html#res.end	200
https://expressjs.com/en/4x/api.html#res.redirect	200
https://expressjs.com/en/4x/api.html#req.xhr	200
https://expressjs.com/en/5x/api.html#req.ip	200
https://expressjs.com/en/4x/api.html#app.use	200
https://expressjs.com/en/api.html#res.render	200
http://expressjs.com/fr/api.html#req	200
http://expressjs.com/en/starter/installing.html	200
http://expressjs.com/en/4x/api.html#express.urlencoded	200
https://expressjs.com/en/5x/api.html#express.json	200
https://expressjs.com/en/guide/using-middleware.html#middleware.error-handling	200
https://expressjs.com/en/resources/middleware/cookie-session.html	200
https://expressjs.com/en/api.html#app.mountpath	200
https://expressjs.com/en/api.html#req.hostname	200
https://expressjs.com/en/guide/behind-proxies.html	200
http://expressjs.com/en/api.html#req.properties	200
http://expressjs.com/en/resources/middleware/cors.html	200
http://expressjs.com/en/4x/api.html#res.sendStatus	200
https://expressjs.com/en/api.html#res.set	200
https://expressjs.com/en/api.html#res.download	200
http://expressjs.com/fr/4x/api.html#req.params	200
https://expressjs.com/en/3x/api.html	200
https://expressjs.com/en/api.html#app.delete.method	200
http://expressjs.com/en/4x/api.html#express.json	200
https://www.google.com/url?sa=t&amp	rct=j&amp
https://expressjs.com/en/4x/api.html#req.get	200
http://expressjs.com/en/api.html#app.get	200
https://expressjs.com/en/advanced/best-practice-performance.html	200
https://expressjs.com/en/guide/database-integration.html	200
http://expressjs.com/en/api.html#res.end	200
http://expressjs.com/fr/api.html	200
http://expressjs.com/en/api.html#app.get.method	200
https://expressjs.com/en/5x/api.html#req.ips	200
https://expressjs.com/en/4x/api.html#app.settings.table	200
https://expressjs.com/en/4x/api.html#req	200
https://expressjs.com/en/advanced/developing-template-engines.html	200
http://expressjs.com/en/resources/middleware/timeout.html	200
http://expressjs.com/en/api.html#originalUrl	200
http://expressjs.com/en/api.html#res.sendStatus	200
http://expressjs.com/en/api.html#app.set	200
http://expressjs.com/en/guide/routing.html	200
http://expressjs.com/en/4x/api.html#etag.options.table	200
http://expressjs.com/en/4x/api.html#req.query	200
https://expressjs.com/en/3x/api.html#res.send	200
https://expressjs.com/en/4x/api.html#app.listen	200
http://expressjs.com/en/resources/middleware/session.html#compatible-session-stores	200
https://expressjs.com/fr/api.html#res.sendFile	200
http://expressjs.com	200
https://expressjs.com/en/4x/api.html#express.static	200
https://expressjs.com/en/changelog/4x.html	200
http://expressjs.com/en/api.html#res.download	200
https://expressjs.com/en/4x/api.html#middleware-callback-function-examples	200
http://expressjs.com/en/5x/api.html#app.set	200
https://expressjs.com/en/5x/api.html#app.set	200
https://expressjs.com/en/4x/api.html#res.sendFile	200
http://expressjs.com/en/4x/api.html#app.get.method	200
https://expressjs.com/	200
https://expressjs.com/en/changelog/4x.html#4.16.0	200
http://expressjs.com/en/api.html#app.listen	200
http://expressjs.com/fr/4x/api.html#path-examples	200
https://expressjs.com/en/api.html#express.json	200
https://expressjs.com/en/guide/debugging.html	200
https://expressjs.com/en/api.html#app.post.method	200
http://expressjs.com/en/guide/routing.html#route-handlers	200
https://expressjs.com/en/advanced/best-practice-security.html	200
http://expressjs.com/en/api.html#req.params	200
https://expressjs.com/en/guide/routing.html#route-parameters	200
http://expressjs.com/en/api.html#router	200
http://www.expressjs.com	200
http://expressjs.com/en/5x/api.html#express	200
http://expressjs.com/en/api.html#res.jsonp	200
http://expressjs.com/en/4x/api.html#res.status	200
http://expressjs.com/en/resources/middleware/session.html	200
http://expressjs.com/en/5x/api.html#res.redirect	200
https://expressjs.com/en/starter/static-files.html	200
http://expressjs.com/en/api.html#req.is	200
https://expressjs.com/en/4x/api.html#req.params	200
https://expressjs.com/en/resources/middleware/cors.html#configuration-options	200
http://expressjs.com/en/guide/database-integration.html#sql-server	200
http://expressjs.com/en/api.html#app.mountpath	200
http://expressjs.com/en/api.html#router.use	200
https://expressjs.com/en/guide/migrating-5.html#req.body	200
https://expressjs.com/en/resources/middleware/serve-index.html	200
https://expressjs.com/en/starter/faq.html	200
https://expressjs.com/en/5x/api.html#req.method	200
http://expressjs.com/en/5x/api.html#res	200
http://expressjs.com/en/4x/api.html#res	200
http://expressjs.com/en/api.html#res.json	200
http://expressjs.com/en/4x/api.html#app.param	200
http://expressjs.com/en/4x/api.html#req.params	200
https://expressjs.com/en/4x/api.html#req.body	200
http://expressjs.com/en/4x/api.html#router.use	200
https://expressjs.com/en/guide/migrating-5.html#req.query	200
https://expressjs.com/en/guide/routing.html#route-paths-based-on-string-patterns	200
http://expressjs.com/pt-br/api.html#app.post.method	200
https://expressjs.com/en/api.html#res.locals	200
https://expressjs.com/en/4x/api.html#res|Express	200
http://expressjs.com/en/4x/api.html#router.route	200
http://expressjs.com/pt-br/api.html#app.locals	200
https://expressjs.com/fr/api.html#app.set	200
http://expressjs.com/en/4x/api.html#router	200
http://expressjs.com/en/advanced/best-practice-performance.html	200
https://expressjs.com/en/guide/error-handling.html#writing-error-handlers	200
https://expressjs.com/en/resources/middleware/body-parser.html#bodyparsertextoptions	200
https://expressjs.com/it/guide/routing.html	200
http://expressjs.com/es/4x/api.html#app	200
https://expressjs.com/en/guide/using-middleware.html	200
https://expressjs.com/en/4x/api.html#res.send	200
https://expressjs.com/en/guide/routing.html	200
http://expressjs.com/en/4x/api.html#req	200
http://expressjs.com/en/4x/api.html#app	200
http://expressjs.com/en/api.html#res.type	200
http://expressjs.com/en/api.html#res.locals	200
https://expressjs.com/en/5x/api.html#path-examples	200
https://expressjs.com/en/api.html#express.urlencoded	200
https://expressjs.com/en/api.html#req.params	200
https://expressjs.com/en/4x/api.html#res.locals	200
https://expressjs.com/en/4x/api.html#res.json	200
http://expressjs.com/en/5x/api.html#req.body	200
http://expressjs.com/en/api.html#setHeaders	200
https://expressjs.com/en/4x/api.html#req.app	200
https://expressjs.com/de/api.html#res.type	200
https://expressjs.com/en/guide/error-handling.html#the-default-error-handler	200
https://expressjs.com/en/api.html#express.text	200
http://expressjs.com/de/api.html#app.render	200
https://expressjs.com/en/api.html#res.cookie	200
http://expressjs.com/en/api.html#app.onmount	200
http://expressjs.com/en/4x/api.html#req.cookies	200
https://expressjs.com/en/4x/api.html#res.cookie	200
http://expressjs.com/en/4x/api.html#req.body	200
https://expressjs.com/pt-br/api.html#res.send	200
https://expressjs.com/en/4x/api.html#express	200
https://expressjs.com/en/api.html#req.baseUrl	200
http://expressjs.com/en/api.html#res.render	200
http://expressjs.com/en/guide/routing.html#express-router	200
https://expressjs.com/pt-br/guide/using-template-engines.html	200
http://expressjs.com/en/4x/api.html#router.param	200
https://expressjs.com/zh-tw/guide/using-middleware.html	200
http://expressjs.com/de/api.html	200
http://expressjs.com/fr/api.html#res.json	200
http://expressjs.com/en/api.html#app.param	200
https://expressjs.com/en/api.html#res.clearCookie	200
http://expressjs.com/en/guide/using-middleware.html#middleware.error-handling	200
http://expressjs.com/en/guide/migrating-4.html	200
https://expressjs.com/en/guide/using-middleware.html#middleware.router	200
https://expressjs.com/en/4x/api.html#app.render	200
https://expressjs.com/en/resources/middleware/serve-static.html	200
https://expressjs.com/en/starter/hello-world.html	200
https://expressjs.com/en/guide/writing-middleware.html	200
http://expressjs.com/en/4x/api.html#res.locals	200
http://expressjs.com/de/api.html#res.render	200
http://expressjs.com/en/api.html#trust.proxy.options.table	200
http://expressjs.com/ja/guide/error-handling.html	200
https://expressjs.com/ko/api.html	200
#748	200
http://expressjs.com/en/4x/api.html#req.signedCookies	200
https://expressjs.com/en/4x/api.html#router	200
http://expressjs.com/en/4x/api.html#app.locals	200
http://expressjs.com/en/guide/routing.html#route-parameters	200
http://expressjs.com/en/api.html#app.post.method	200
https://expressjs.com/en/5x/api.html#router.use	200
http://expressjs.com/en/starter/basic-routing.html	200
https://expressjs.com/en/guide/migrating-5.html#path-syntax	200
http://expressjs.com/en/4x/api.html#express	200
https://expressjs.com/en/4x/api.html#res.render	200
http://expressjs.com/en/advanced/best-practice-security.html	200
http://expressjs.com/en/api.html#router.param	200
https://expressjs.com/en/advanced/healthcheck-graceful-shutdown.html	200
https://expressjs.com/en/4x/api.html#express.router	200
https://expressjs.com/en/guide/error-handling.html	200
https://expressjs.com/en/5x/api.html#res.set	200
http://expressjs.com/en/4x/api.html#res.cookie	200
https://expressjs.com/en/api.html#req	200
http://www.expressjs.com.cn/4x/api.html#app.locals	200
http://expressjs.com/en/starter/generator.html	200
http://expressjs.com/de/api.html#express.router	200
http://expressjs.com/en/resources/middleware/multer.html	200
https://expressjs.com/en/guide/database-integration.html#postgresql	200
http://expressjs.com/en/api.html#res.cookie	200
http://expressjs.com/en/4x/api.html#express.router	200
http://expressjs.com/en/4x/api.html#req.xhr	200
http://expressjs.com/en/starter/static-files.html#serving-static-files-in-express	200
https://expressjs.com/en/api.html#res	200
https://expressjs.com/en/4x/api.html#res.app	200
https://expressjs.com/en/4x/api.html#app.mountpath	200
https://expressjs.com/en/guide/migrating-5.html#res.sendfile	200
https://expressjs.com/en/resources/middleware/session.html#sessionsavecallback	200
https://expressjs.com/en/resources/middleware/cors.html#usage	200
http://expressjs.com/en/guide/routing.html#route-paths	200
http://expressjs.com/en/guide/using-template-engines.html	200
https://expressjs.com/en/api.html#res.sendFile	200
http://expressjs.com/en/4x/api.html#res.sendFile	200
http://expressjs.com/en/4x/api.html#req.param	200
https://expressjs.com	200
https://expressjs.com/en/4x/api.html#app.onmount	200
https://expressjs.com/en/resources/middleware/cors.html	200
http://expressjs.com/en/guide/behind-proxies.html	200
http://expressjs.com/en/4x/api.html#req.app	200
https://expressjs.com/de/api.html#express.urlencoded	200
https://expressjs.com/en/resources/middleware/body-parser.html	200
http://expressjs.com/en/api.html#app.use	200
http://expressjs.com/en/advanced/developing-template-engines.html	200
http://expressjs.com/en/api.html#express.text	200
https://expressjs.com/en/4x/api.html#req.fresh	200
https://expressjs.com/en/starter/generator.html	200
https://expressjs.com/en/4x/api.html#req.protocol	200
https://expressjs.com/en/api.html#express.static	200
https://expressjs.com/en/guide/using-middleware.html#middleware.application	200
http://expressjs.com/en/api.html#req.baseUrl	200
https://expressjs.com/en/starter/faq.html#how-do-i-handle-404-responses	200
http://expressjs.com/en/starter/hello-world.html	200
http://expressjs.com/en/4x/api.html#req.ip	200
http://expressjs.com/en/4x/api.html#app.post.method	200
http://expressjs.com/en/api.html#app.locals	200
https://expressjs.com/fr/	200
http://expressjs.com/en/api.html#req.accepts	200
https://expressjs.com/pt-br/4x/api.html#res.redirect	200
http://expressjs.com/en/4x/api.html#app.set	200
http://www.expressjs.com.cn/4x/api.html#req.body	200
http://expressjs.com/en/guide/using-middleware.html#middleware.application	200
https://expressjs.com/en/resources/middleware.html	200
http://expressjs.com/en/api.html#req.path	200
http://expressjs.com/en/api.html#req.ip	200
https://expressjs.com/fr/guide/routing.html	200
http://expressjs.com/en/5x/api.html#res.sendStatus	200
https://expressjs.com/en/api.html	200
https://expressjs.com/es/api.html#res.locals	200
http://expressjs.com/en/4x/api.html#app.render	200
http://expressjs.com/de/api.html#res.sendFile	200
http://expressjs.com/en/4x/api.html#express.static	200
http://expressjs.com/en/5x/api.html#res.clearCookie	200
https://expressjs.com/en/api.html#res.send	200
http://expressjs.com/en/starter/faq.html#how-do-i-handle-404-responses	200
https://expressjs.com/en/api.html#res.redirect	200
https://expressjs.com/en/api.html#router.param	200
https://expressjs.com/en/resources/middleware/cookie-parser.html	200
https://expressjs.com/es/4x/api.html#res.send]	200
https://expressjs.com/en/api.html#res.status	200
http://expressjs.com/en/4x/api.html#path-examples	200
https://expressjs.com/en/resources/middleware/multer.html	200
https://expressjs.com/en/4x/api.html#res.type	200
https://expressjs.com/en/api.html#req.body	200
http://expressjs.com/en/4x/api.html#app.mountpath	200
http://expressjs.com/en/resources/middleware/cookie-parser.html	200
http://expressjs.com/en/api.html#res.status	200
http://expressjs.com/en/api.html#res.set	200
https://expressjs.com/en/api.html#req.originalUrl	200
https://expressjs.com/en/4x/api.html#req.query	200
https://expressjs.com/en/guide/routing.html#route-paths	200
https://expressjs.com/en/4x/api.html#res	200
https://expressjs.com/en/api.html#req.cookies	200
https://expressjs.com/en/guide/using-template-engines.html#using-template-engines-with-express	200
https://expressjs.com/en/4x/api.html#req.originalUrl	200
https://expressjs.com/en/resources/middleware/body-parser.html#bodyparserjsonoptions	200
http://expressjs.com/en/4x/api.html#req.path	200
https://expressjs.com/en/4x/api.html#app.set	200
https://expressjs.com/en/4x/api.html#req|Express	200
http://expressjs.com/en/4x/api.html#res.render	200
https://expressjs.com/en/resources/middleware/session.html	200
http://expressjs.com/en/api.html#etag.options.table	200
https://expressjs.com/en/4x/api.html	200
http://expressjs.com/en/api.html#req.body	200
https://expressjs.com/en/resources/middleware/cookie-parser.html#cookieparsersignedcookiestr-secret	200
https://expressjs.com/en/resources/middleware/cors.html#:%7E:text=CORS%20is%20a%20node.,enable%20CORS%20with%20various%20options.	200
http://expressjs.com/2x/guide.html	200
https://expressjs.com/en/5x/api.html#res.cookie	200
http://expressjs.com/en/guide/writing-middleware.html#writing-middleware-for-use-in-express-apps	200
https://expressjs.com/en/api.html#app.disable	200
http://expressjs.com/en/api.html#app.settings.table	200
https://expressjs.com/en/api.html#app.all	200
http://expressjs.com/en/starter/static-files.html	200
http://expressjs.com/de/api.html#req.query	200
http://expressjs.com/en/api.html#req	200
https://expressjs.com/en/4x/api.html#router.use	200
http://expressjs.com/en/api.html	200
https://expressjs.com/en/5x/api.html#res.locals	200
http://expressjs.com/en/guide/writing-middleware.html	200
https://expressjs.com/en/api.html#req.protocol	200
http://expressjs.com/zh-tw/api.html#app.use	200
http://expressjs.com/en/api.html#res.clearCookie	200
https://expressjs.com/pt-br/4x/api.html#app.listen	200
https://expressjs.com/en/resources/middleware/cors.html#configuring-cors-w-dynamic-origin	200
https://expressjs.com/en/5x/api.html#res	200
https://expressjs.com/en/api.html#router	200
https://expressjs.com/en/4x/api.html#app.delete.method	200
http://expressjs.com/en/api.html#express.json	200
http://expressjs.com/en/api.html#req.app	200
http://expressjs.com/en/4x/api.html	200
https://expressjs.com/en/starter/basic-routing.html	200
https://expressjs.com/it/api.html#req.body	200
https://expressjs.com/es/starter/static-files.html	200
https://expressjs.com/en/api.html#app.settings.table	200
http://expressjs.com/en/resources/middleware.html	200
https://expressjs.com/en/4x/api.html#req.is	200
http://expressjs.com/en/guide/using-middleware.html#middleware.router	200
https://expressjs.com/pt-br/api.html#req.body	200
http://expressjs.com/pt-br/api.html#res.headersSent	200
http://expressjs.com/2x/guide.html#req.param%28%29	200
http://expressjs.com/en/4x/api.html#req.acceptsLanguages	200
http://expressjs.com/	200
https://expressjs.com/en/guide/using-template-engines.html	200
https://expressjs.com/en/api.html#app.put.method	200
http://expressjs.com/3x/api.html#app.param	404
http://expressjs.com/tr/api.html#req.method	404
http://expressjs.com/3x/api.html#app.engine	404
http://expressjs.com/4x/api.html#app.param	404
http://expressjs.com/4x/api.html#middleware	404
http://expressjs.com/4x/api.html#req.originalUrl	404
http://expressjs.com/starter/generator.html	404
https://expressjs.com/en/resources/template-engines.html	404
http://expressjs.com/api.html#req.query	404
http://expressjs.com/guide/routing.html	404
http://expressjs.com/4x/api.html#req.fresh	404
http://expressjs.com/api#res.set	404
http://expressjs.com/guide/error-handling.html	404
http://expressjs.com/guide/behind-proxies.html	404
http://expressjs.com/api	404
http://expressjs.com/api#app.locals	404
http://expressjs.com/api.html#res	404
http://expressjs.com/api.html	404
http://expressjs.com/api.html#res.download	404
http://expressjs.com/3x/api.html#app.set	404
http://expressjs.com/api.html#app.param	404
http://expressjs.com/api.html#res.send	404
http://expressjs.com/ru/starter/static-files.html	404
http://expressjs.com/api.html#bodyParser	404
http://expressjs.com/4x/api.html#res.sendfile	404
http://expressjs.com/4x/api.html#app.locals	404
http://expressjs.com/guide.html#creating-a%20server	404
http://expressjs.com/3x/api.html#req.params	404
http://expressjs.com/guide.html	404
http://expressjs.com/4x/api.html#router	404
http://expressjs.com/starter/static-files.html	404
http://expressjs.com/api.html#req.route	404
http://expressjs.com/api#req.accepts	404
http://expressjs.com/api.html#req.body	404
http://expressjs.com/api.html#res.status	404
http://expressjs.com/api.html#app.engine	404
http://expressjs.com/guide/migrating-4.html#app-gen	404
http://expressjs.com/api.html#app.all	404
http://expressjs.com/4x/api.html#req.params	404
http://expressjs.com/4x/api.html#req.query	404
http://expressjs.com/faq.html	404
http://expressjs.com/4x/api.html#app.get	404
http://expressjs.com/guide.html#route-middleware	404
http://expressjs.com/3x/api.html#app.locals	404
http://expressjs.com/migrate.html	404
http://expressjs.com/4x/api.html#app.set	404
http://expressjs.com/3x/api.html#app.VERB	404
http://expressjs.com/4x/api.html#req.secure	404
https://expressjs.com/ru/guide/routing.html	404
http://expressjs.com/guide.html#executable	404
http://expressjs.com/4x/api.html#res.locals	404
http://expressjs.com/api.html#req.get	404
http://expressjs.com/4x/api.html#req.protocol	404
http://expressjs.com/4x/api.html#res.attachment	404
http://expressjs.com/api.html#app.set	404
http://expressjs.com/4x/api.html#res.set	404
http://expressjs.com/tr/api.html#req.body	404
http://expressjs.com/api.html#req.param	404
http://expressjs.com/faq.html#multiple-statics	404
http://expressjs.com/api.html#app.listen	404
http://expressjs.com/guide.html#res.cookie%28%29	404
http://expressjs.com/3x/api.html#app.use	404
http://expressjs.com/4x/api.html#app.all	404
http://expressjs.com/4x/api.html#router.use	404
http://expressjs.com/4x/api.html#res.render	404
http://expressjs.com/api.html#res.json	404
http://expressjs.com/api.html#res.sendfile	404
http://expressjs.com/en/index.html	404
http://expressjs.com/3x/api.html#req.query	404
http://expressjs.com/api.html#res.render	404
http://expressjs.com/guide.html#proxies	404
http://expressjs.com/4x/api.html#app-settings	404
http://expressjs.com/4x/api.html	404
http://expressjs.com/4x/api.html#res.json	404
http://expressjs.com/api.html#app.use	404
http://expressjs.com/4x/api.html#express.static	404
http://expressjs.com/guide.html#passing-route%20control	404
http://expressjs.com/api#req.param	404
http://expressjs.com/api.html#res.set	404
http://expressjs.com/api.html#req.host	404
http://expressjs.com/guide.html#view-rendering	404
http://expressjs.com/guide.html#passing-route	404
http://expressjs.com/3x/api.html#res.render	404
http://expressjs.com/3x/api.html	404
http://expressjs.com/api.html#cookieSession	404
http://expressjs.com/guide.html#routing	404
http://expressjs.com/guide.html#users-online	404
http://expressjs.com/api.html#app.enable	404
http://expressjs.com/api.html#app.VERB	404
http://expressjs.com/api.html#res.format	404
http://expressjs.com/4x/api.html#res.redirect	404
http://expressjs.com/api.html#app.locals	404
http://expressjs.com/3x/api.html#middleware	404
http://expressjs.com/api#router.param	404
http://expressjs.com/api.html#req.originalUrl	404
http://expressjs.com/en/guide/writing-middleware.html|Writing	404
http://expressjs.com/4x/api.html#res.format	404
http://expressjs.com/4x/api.html#res.download	404
http://expressjs.com/4x/api.html#req.host	404
http://expressjs.com/4x/api.html#app.VERB	404
http://expressjs.com/api.html#app.METHOD	404
http://expressjs.com/4x/api.html#res.jsonp	404
https://expressjs.com/tr/guide/routing.html	404
http://expressjs.com/api.html#res.locals	404
http://expressjs.com/guide/using-template-engines.html	404
http://expressjs.com/4x/api.html#app.use	404
http://expressjs.com/api#app.use	404
http://expressjs.com/4x/api.html#res.send	404
http://expressjs.com/4x/api.html#req.ips	404
http://expressjs.com/api.html#app.render	404
http://expressjs.com/api.html#compress	404
http://expressjs.com/3x/api.html#res.send	404
http://expressjs.com/guide/using-middleware.html	404
http://expressjs.com/applications.html	404
http://expressjs.com/4x/api.html#app.engine	404
http://expressjs.com/api.html#req.ip	404
http://expressjs.com/api.html#req.cookies	404
http://expressjs.com/3x/api.html#res.set	404
http://expressjs.com/en/guide	404
http://expressjs.com/guide.html#configuration	404
http://expressjs.com/guide.html#error-handling	404
http://expressjs.com/api.html#req.files	404
http://expressjs.com/api.html#app.configure	404
http://expressjs.com/api.html#app-settings	404
http://expressjs.com/api.html#res.redirect	404
http://expressjs.com/api.html#req.protocol	404
http://expressjs.com/api.html#req.accepts	404
http://expressjs.com/3x/api.html#cookieSession	404
http://expressjs.com/4x/api.html#express	404
http://expressjs.com/api.html#app.routes	404
http://expressjs.com/3x/api.html#req.param	404
#159	404
http://expressjs.com/4x/api.html#req.param	404
http://expressjs.com/api.html#req.params	404
http://expressjs.com/api.html#res.cookie	404
http://expressjs.com/api.html#middleware	404

In case you ever want to repro, my SEDE query was

SELECT Body
FROM Posts
WHERE Body LIKE '%expressjs.com%';

and my shitty Python code to generate the table above was something along these lines (I typed it straight into the REPL):

import re
x = open('QueryResults.csv').read()
words = re.split('[ <>"\n()]', x)
urls = {word for word in words if 'expressjs.com' in word and word.startswith('http')}
import requests
statuses = {url: requests.get(url).status_code for url in urls}
import csv
w = open('pages.csv', 'w')
cw = csv.writer(w)
for url, status in sorted(statuses.items(), key=lambda tup: tup[1]):
    cw.writerow((url, status))
w.close()