Domain report
corwin.com
corwin.com ranks in the top 0.015% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 17 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.015%
- Hosts observed
- 17
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://corwin.com/ answered with HTTP 200.
DNS records
- A
- 104.18.12.30
- 104.18.13.30
- AAAA
- 2606:4700::6812:c1e
- 2606:4700::6812:d1e
- MX
- 10 corwin-com.mail.protection.outlook.com.
- NS
- amy.ns.cloudflare.com.
- leonidas.ns.cloudflare.com.
Live preview
This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.
Since corwin.com can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.
Domain registration (WHOIS / RDAP)
RDAP lookup failed (HTTP 429).
SSL certificate
Certificate Transparency lookup failed (HTTP 429).
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html; charset=utf-8
- Cache-Control
- no-cache
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- default-src 'self' *.clarity.ms ml314.com *.romeo.liveclicker.com romeo.liveclicker.com cdnjs.cloudflare.com 'unsafe-inline' 'unsafe-eval'; script-src 'self' *.googleapis.com *.gstatic.com www.google.com apis.google.com *.google-analytics.com connect.facebook.net ajax.aspnetcdn.com https://www.youtube.com platform.twitter.com https://syndication.twitter.com/ https://s.ytimg.com https://publish.twitter.com *.twimg.com platform.linkedin.com http://platform.stumbleupon.com/1/widgets.js https://*.googletagmanager.com cdnjs.cloudflare.com https://unpkg.com https://cdnjs.cloudflare.com *.hawksearch.net https://cdn.insight.sitefinity.com https://dec.azureedge.net https://js.monitor.azure.com 'unsafe-inline' 'unsafe-eval' munchkin.marketo.net *.eloqua.com *.en25.com cdn.ampproject.org web-chat.nativechat.com code.jquery.com kendo.cdn.telerik.com maps.google.com z.moatads.com v1.addthisedge.com *.googletagmanager.com *.quantcast.com *.quantserve.com *.quantcount.com cltgtstor001.blob.core.windows.net *.slgnt.us cdn.polyfill.io googleads.g.doubleclick.net static.ads-twitter.com snap.licdn.com *.adroll.com t.co analytics.twitter.com *.google.com *.linkedin.com *.33across.com *.hotjar.com cdn.jsdelivr.net ml314.com *.clarity.ms *.romeo.liveclicker.com romeo.liveclicker.com *.sitescout.com cdn01.basis.net *.pixel.ad *.surveymonkey.com cmp.inmobi.com *.onetrust.com assistant.woorank.com cdn.ribbonapp.com www.youtube.com *.sagepub.com *.corwin.com translate.google.com translate.googleapis.com translate-pa.googleapis.com www.google-analytics.com *.posthog.com public.virtualbadge.io prod.smassets.net *.amplitude.com static.virtualbadge.io static.cloudflareinsights.com tags.srv.stackadapt.com https://tags.srv.stackadapt.com https://srv.stackadapt.com https://ap.srv.stackadapt.com https://east.srv.stackadapt.com https://uw.srv.stackadapt.com https://eu.srv.stackadapt.com https://qvdt3feo.com *.bing.com *.amazon-adsystem.com https://player.vimeo.com/api/player.js https://www.youtube.com/iframe_api ; style-src 'self' *.googleapis.com *.gstatic.com kendo.cdn.telerik.com www.google.com platform.twitter.com/css/ *.twimg.com https://unpkg.com *.hawksearch.net https://cdn.insight.sitefinity.com https://dec.azureedge.net web-chat.nativechat.com cdn.jsdelivr.net cdnjs.cloudflare.com *.googletagmanager.com *.romeo.liveclicker.com romeo.liveclicker.com *.sagepub.com www.gstatic.com fonts.googleapis.com *.onetrust.com *.wondering.com prod.smassets.net *.corwin.com https://tags.srv.stackadapt.com 'unsafe-inline'; img-src 'self' *.gstatic.com *.googleapis.com platform.tumblr.com web.facebook.com www.facebook.com www.redditstatic.com www.linkedin.com i.ytimg.com https://syndication.twitter.com https://static.licdn.com/scds/common/u/images/apps/connect/sprites/sprite_connect_v14.png pbs.twimg.com platform.twitter.com/css/ *.twimg.com data: blob: https://*.googletagmanager.com https://cf-images.us-east-1.prod.boltdns.net https://dec.azureedge.net https://*.insight.sitefinity.com https://*.dec.sitefinity.com *.eloqua.com web-chat.nativechat.com maps.google.com *.quantserve.com *.quantcount.com t.co *.twitter.com *.google.com *.linkedin.com *.adroll.com x.bidswitch.net cm.g.doubleclick.net dsum-sec.casalemedia.com idsync.rlcdn.com pixel.rubiconproject.com us-u.openx.net sync.outbrain.com image2.pubmatic.com ups.analytics.yahoo.com sync.taboola.com eb2.3lift.com ib.adnxs.com *.google-analytics.com *.googletagmanager.com *.clarity.ms ml314.com ps.eyeota.net sync.crwdcntrl.net match.adsrvr.org dpm.demdex.net *.sitescout.com www.google.com.ni googleads.g.doubleclick.net cmn-cdn-uat-001.sagepub.com cmn-cdn-001.sagepub.com https://sagepubcoreweb.blob.core.windows.net *.sagepub.com *.corwin.com *.openstreetmap.org *.onetrust.com *.wondering.com prod.smassets.net www.gstatic.com translate.googleapis.com fonts.gstatic.com c.bing.com stsfcorwinciwestus001.blob.core.windows.net stsfcorwinqawestus001.blob.core.windows.net stsfcorwinstgwestus001.blob.core.windows.net stsfcorwinprodwestus001.blob.core.windows.net https://tags.srv.stackadapt.com *.bing.com https://cdn.insight.sitefinity.com ; font-src 'self' fonts.gstatic.com kendo.cdn.telerik.com netdna.bootstrapcdn.com data: cdnjs.cloudflare.com prod.smassets.net cdn.smassets.net; frame-src 'self' https://platform.twitter.com/ https://syndication.twitter.com/ https://www.youtube.com/ https://www.youtube-nocookie.com https://player.vimeo.com/ https://w.soundcloud.com/ apis.google.com accounts.google.com staticxx.facebook.com www.facebook.com web.facebook.com badge.stumbleupon.com players.brightcove.net *.slgnt.us www.youtube.com www.buzzsprout.com *.sitescout.com *.surveymonkey.com *.sagepub.com *.corwin.com www.googletagmanager.com public.virtualbadge.io prod.smassets.net *.amplitude.com; connect-src 'self' data: accounts.google.com *.google-analytics.com *.gstatic.com https://*.googletagmanager.com https://*.googleapis.com/ *.hawksearch.net https://*.insight.sitefinity.com https://*.dec.sitefinity.com https://dc.services.visualstudio.com https://cdnjs.cloudflare.com *.mktoresp.com *.googletagmanager.com maps.googleapis.com *.quantcast.com *.quantserve.com *.quantcount.com *.hawksearch.com www.google.com googleads.g.doubleclick.net *.slgnt.us stats.g.doubleclick.net *.google.com *.linkedin.com *.adroll.com cdn.linkedin.oribi.io *.hotjar.com wss://*.hotjar.com *.hotjar.io ml314.com *.clarity.ms cmp.inmobi.com api.cmp.inmobi.com google.com *.googlesyndication.com *.onetrust.com www.woorank.com *.sagepub.com *.corwin.com www.google-analytics.com *.applicationinsights.azure.com nominatim.openstreetmap.org translate-pa.googleapis.com translate.googleapis.com *.wondering.com *.facebook.com *.woorank.com js.monitor.azure.com *.posthog.com public.virtualbadge.io cdn.jsdelivr.net kendo.cdn.telerik.com unpkg.com *.azurewebsites.net https://tags.srv.stackadapt.com *.bing.com *.amazon-adsystem.com; media-src 'self' data: blob: https://sagepubcoreweb.blob.core.windows.net; child-src 'self' web-chat.nativechat.com *.slgnt.us
- Strict-Transport-Security
- max-age=15552000; includeSubDomains; preload
- X-Frame-Options
- SAMEORIGIN
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- no-referrer-when-downgrade
- Permissions-Policy
- accelerometer=(self), ambient-light-sensor=(self), autoplay=(self), battery=(self), camera=(self), cross-origin-isolated=(self), display-capture=(self), document-domain=(self), encrypted-media=(self), execution-while-not-rendered=(self), execution-while-out-of-viewport=(self), fullscreen=(self), geolocation=(self), gyroscope=(self), keyboard-map=(self), magnetometer=(self), microphone=(self), midi=(self), navigation-override=(self), payment=(self), picture-in-picture=(self), publickey-credentials-get=(self), screen-wake-lock=(self), sync-xhr=(self), usb=(self), web-share=(self), xr-spatial-tracking=(self)
Redirect chain
- 1.
http://corwin.com/HTTP 301→ https://corwin.com/
- 2.
https://corwin.com/HTTP 301→ https://www.corwin.com/
- 3.
https://www.corwin.com/HTTP 200
Meta tags
- Title
- Corwin | Books and Professional Development for Teachers and Educators
- Description
- Corwin publishes practical, research-based books, and provides events and customized professional learning services for schools and districts.
- Canonical
- https://www.corwin.com
- Robots
- Not set
- Generator
- Sitefinity 15.4.8636.0 DX
- Open Graph title
- Corwin | Books and Professional Development for Teachers and Educators
- Open Graph description
- Corwin publishes practical, research-based books, and provides events and customized professional learning services for schools and districts.
- Open Graph image
- Not set
- Open Graph type
- website
- Twitter card
- summary
- Twitter title
- Corwin | Books and Professional Development for Teachers and Educators
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 6
- Disallow rules (other agents)
- 1
Sitemap declared:
https://corwin.com/sitemap/sitemap.gz
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
- ASP.NETframework
X-Powered-By: ASP.NET
- Cloudflare Bot Managementcdn
Cookie set: __cf_bm
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.