CONTINUOUS INTERNET TELEMETRY24H DRIFT2,893 material changesacross 2,548 domains · -505 vs yesterdayDNS DRIFT20 domains changed DNS providertop destination cloudflare.com · -7 vs yesterdayEMAIL DRIFT4 domains switched email providertop destination reyrey.com · -2 vs yesterdayCERT DRIFT7 domains switched issuing CA24hNOW3,308 curated domains not answering-6,410 vs yesterdayERRORS10,962 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT2,893 material changesacross 2,548 domains · -505 vs yesterdayDNS DRIFT20 domains changed DNS providertop destination cloudflare.com · -7 vs yesterdayEMAIL DRIFT4 domains switched email providertop destination reyrey.com · -2 vs yesterdayCERT DRIFT7 domains switched issuing CA24hNOW3,308 curated domains not answering-6,410 vs yesterdayERRORS10,962 responded with an errorlast probe · 5xx / 404 / 429 / 403

coursehero.com

Observed 2026-07-12T16:42:10.159Z (17h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCloudflare
Email byGoogle Workspace
Registered withGoDaddy.com, LLC
Also usesAtlassianMiroGoogle Search ConsoleZoomNotion
20 subdomains · education_expanded
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat coursehero.com actually stands on - every host below is a signed observation
coursehero.com
A / AAAA
104.17.143.115104.17.142.115
Cloudflareserves the site
NS
ali.ns.cloudflare.combob.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt2.aspmx.l.google.comalt4.aspmx.l.google.comalt3.aspmx.l.google.com+3 more
Google Workspacereceives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.coursehero.com/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time189 ms
DNS resolutionNOERROR
Redirect chain
https://www.coursehero.com/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

  • 104.17.143.115
  • 104.17.142.115

MX 7

  • 1aspmx.l.google.com
  • 5alt2.aspmx.l.google.com
  • 10alt4.aspmx.l.google.com
  • 10alt3.aspmx.l.google.com
  • 5alt1.aspmx.l.google.com
  • 10aspmx3.googlemail.com
  • 10aspmx2.googlemail.com

TXT 24

  • globalsign-domain-verification=9AC94274374646C0309FBF52D4C347E5
  • globalsign-domain-verification=6f8ab1bf5972d1fec2bed8c50fc8f17f
  • globalsign-domain-verification=2eaa5b27a77c2daddf7a4de4d1d0b631
  • atlassian-domain-verification=HuZkEy3RvMSIX6gZ/iF9B/EYH1awgocgR2HXxCaOZLQhFSSaizLaV68WLJ67OdV5
  • 5652918DDF
  • globalsign-domain-verification=6I41XwGS3W3RH3qcFMFl4OEqtMzo9xTMeWN8-mrBax
  • hzlh1s4kn3zrz66vng5sdxkc1fc5088m
  • miro-verification=cd41ffb512f978da767f4d40547aad9ce48ac4e2
  • adobe-idp-site-verification=8b9b597326c953485203409a584c256ae5300d4628d2c614db42c35dbfc4d827
  • cursor-domain-verification-mqkys8=xlPNXlbiVQnaxZlmsW9WuEsaz

NS 2

  • ali.ns.cloudflare.com
  • bob.ns.cloudflare.com

SOA 1

  • ali.ns.cloudflare.com dns.cloudflare.com

CAA 16

  • issue pki.goog; cansignhttpexchanges=yes
  • issue digicert.com; cansignhttpexchanges=yes
  • issuewild digicert.com; cansignhttpexchanges=yes
  • issue globalsign.com
  • issue comodoca.com
  • issuewild letsencrypt.org
  • issue amazontrust.com
  • issue godaddy.com
  • issue ssl.com
  • issuewild comodoca.com

TLS Certificates (0)

None.

Subdomains (10)

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for coursehero.com. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for coursehero.com <a href="https://domaindrift.io/t/coursehero.com"> <img src="https://domaindrift.io/badge/coursehero.com.svg" width="300" height="64" alt="DomainDrift signed observations for coursehero.com"> </a>

Ed25519 Receipt

Receipt ID
8cae49f9-b4f3-424f-92f7-57f4e8b132fd
Output Hash
00ae7bd8ecd24582198c9c99b588e9e9e7869a2aefa0139b42e84ead45aa76f9
Signature
ed25519:b8e9ad75380a6210193dde9ba7c09436b98bf2094693407ba0aaf8e6befbab2f2bede7023c8dafe311ca0843a040b870f0aec5d6e7b9c4e49d438887f7c88005
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser