What powers 
nrpp.info?
Last seen Oct 2026 · 25 technologies across 16 categories
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AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| radon mitigation near me | #2 | 1,100 |
| radon technician | #3 | 170 |
| radon mitigation system near me | #3 | 120 |
| radon professional | #1 | 54 |
| nrpp certification | #1 | 52 |
| radon mitigation specialists | #4 | 50 |
| nrpp login | #1 | 44 |
| certified radon mitigation | #2 | 32 |
| nrpp-approved devices | #1 | 28 |
| radon mitigation specialist | #7 | 24 |
| radon courses | #2 | 23 |
| radon certification classes | #1 | 22 |
| aarst nrpp | #2 | 19 |
| radon certification | #6 | 19 |
| nrpp radon | #1 | 15 |
| radon professional near me | #1 | 15 |
| nrpp radon certification | #1 | 13 |
| nrpp certified radon professionals | #2 | 13 |
| aarst-nrpp | #2 | 12 |
| nrpp radon exam | #2 | 12 |
| radon inspector | #2 | 12 |
| radon services near me | #2 | 12 |
| radon certification course | #2 | 11 |
| radon certification courses | #2 | 11 |
| radon testing laboratory | #5 | 10 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 74% desktop
- 26% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.29 / 10 · ranked #205,102 of all domains
138 referring domains · OpenPageRank
Search traffic
2,200 est. monthly organic visits (US)
516 keywords in Google's top 30
Core Web Vitals
| LCP | 1.3 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English (United States)
- Weight: 3.8 MB · 109 requests
- WordPress theme: colormag (child: colormag-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Registered Sep 2012 (14 years) via LiquidNet Limited, renews Sep 2027
- Hosted on Linode (Akamai) (50.116.50.110)
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 647,088, 3 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Jan 2026