What powers ncvs.org?
Last seen Aug 2026 · 42 technologies across 20 categories
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
Hosting
JavaScript frameworks
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JavaScript libraries
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Miscellaneous
Performance
Programming languages
Security
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WordPress plugins
WordPress themes
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| voice quality | #1 | 97 |
| vocal quality | #1 | 89 |
| voice descriptions | #4 | 58 |
| vocal qualities | #1 | 36 |
| singers formant | #2 | 34 |
| vocology | #3 | 31 |
| voice fluctuation | #1 | 27 |
| vocal quality definition | #1 | 21 |
| vocal characteristics | #1 | 21 |
| vocal characteristic | #1 | 21 |
| voice quality descriptors | #1 | 21 |
| descriptions of voice quality | #1 | 21 |
| formant singing | #4 | 14 |
| voice quality examples | #1 | 12 |
| what is vocal quality | #1 | 12 |
| what is vocal qualities | #1 | 12 |
| what is human voice frequency | #4 | 11 |
| harvey fletcher | #4 | 11 |
| fundamental frequency | #18 | 10 |
| what is voice quality | #1 | 9 |
| human voice frequency | #9 | 9 |
| quality of speech | #2 | 8 |
| fundamental frequency of voice | #2 | 8 |
| singing vagus nerve | #3 | 7 |
| voice fluctuations | #4 | 6 |
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
Policy unknown
Audience
- 64% desktop
- 36% phone
United States
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.17 / 10 · ranked #231,717 of all domains
154 referring domains · OpenPageRank
Search traffic
750 est. monthly organic visits (US)
356 keywords in Google's top 30
Core Web Vitals
| LCP | 2 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 4.3 MB · 106 requests
- WordPress theme: divi · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- NCVS - National Center for Voice and Speech (vocal range on Wikidata)
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (66.235.200.147)
- DNS: Bluehost
- Email: no MX record returned, SPF names HostGator
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 525,615, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ncvs.org | 28 |
| www.ncvs.org | 20 |
Full technology history →
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Recent changes
- detected Open Graph Feb 2026
- detected RankMath SEO Feb 2026
- detected MailChimp Nov 2025
- detected MailChimp for WordPress Nov 2025
- dropped Nginx Nov 2025
- dropped Amazon S3 Oct 2025
- dropped Amazon Web Services Oct 2025
- detected Cloudflare Oct 2025
- detected Cloudflare Bot Management Oct 2025
- dropped FlexSlider Oct 2025
- dropped Flickity Oct 2025
- detected Google Analytics Oct 2025
- detected HTTP/3 Oct 2025
- detected Jetpack Oct 2025
- dropped MailChimp Oct 2025
- detected Site Kit Oct 2025
- dropped Underscore.js Oct 2025