Domain report
nihtraining.com
nihtraining.com ranks in the top 0.058% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 8 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.058%
- Hosts observed
- 8
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://nihtraining.com/ answered with HTTP 200.
DNS records
- A
- 3.227.152.151
- 52.45.78.125
- AAAA
- No records found.
- MX
- No records found.
- NS
- ns-1447.awsdns-52.org.
- ns-1901.awsdns-45.co.uk.
- ns-462.awsdns-57.com.
- ns-545.awsdns-04.net.
Live preview
This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.
Since nihtraining.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, private
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- base-uri 'self';connect-src 'self' https://px.ads.linkedin.com consent.cookiebot.com consentcdn.cookiebot.com www.google-analytics.com analytics.google.com/g/collect *.doubleclick.net https://www.google.com https://www.gstatic.com *.googletagmanager.com *.fontawesome.com *.tidio.co *.tidiochat.com wss: www.buzzsprout.com *.clarity.ms https://sc.lfeeder.com;default-src 'self';form-action 'self';img-src 'self' * data: *.googletagmanager.com *.clarity.ms https://sc.lfeeder.com;media-src 'self' *.tidio.co *.tidiochat.com;object-src 'none';script-src 'self' snap.licdn.com https://connect.facebook.net consent.cookiebot.com consentcdn.cookiebot.com 'unsafe-inline' www.googletagmanager.com www.google-analytics.com https://www.google.com https://www.gstatic.com *.googletagmanager.com kit.fontawesome.com js.hs-scripts.com js.hs-banner.com js.hs-analytics.net js.stripe.com *.tidio.co *.tidiochat.com www.buzzsprout.com *.clarity.ms https://sc.lfeeder.com;style-src 'self' 'unsafe-inline' fonts.googleapis.com;frame-ancestors 'self' https://www.google.com https://www.recaptcha.net;font-src 'self' *.fontawesome.com fonts.gstatic.com *.tidio.co;frame-src consent.cookiebot.com consentcdn.cookiebot.com https://www.google.com https://www.recaptcha.net *.googletagmanager.com js.stripe.com www.youtube.com *.youtube.com youtube.com www.youtube-nocookie.com www.buzzsprout.com
- Strict-Transport-Security
- max-age=31536000; includeSubDomains
- X-Frame-Options
- SAMEORIGIN
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- no-referrer-when-downgrade
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://nihtraining.com/HTTP 301→ https://nihtraining.com/
- 2.
https://nihtraining.com/HTTP 301→ https://phrptraining.com/
- 3.
https://phrptraining.com/HTTP 200
Meta tags
- Title
- Protecting Human Research Participants | PHRP Training
- Description
- An online course on what's involved in protecting human research participants. It's PHRP training that's affordable and meets NIH requirements.
- Canonical
- Not set
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- Not set
- Open Graph description
- Not set
- Open Graph image
- Not set
- Open Graph type
- Not set
- Twitter card
- Not set
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 0
- Disallow rules (other agents)
- 0
No Sitemap declared in robots.txt.
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
- Google Tag Manageranalytics
Found "googletagmanager.com/gtm.js" in the page's HTML
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.