What powers 
vaccineinformation.org?
Last seen Sep 2026 · 30 technologies across 23 categories
Analytics
Authentication
Caching
CDN
CMS
Databases
Font scripts
Hosting
JavaScript libraries
Miscellaneous
Operating systems
PaaS
Page builders
Performance
Programming languages
RUM
Security
SEO
Tag managers
Video players
Web servers
Webmail
WordPress plugins
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| measles | #55 | 1,300 |
| whooping cough vaccine | #7 | 950 |
| measles photos | #3 | 430 |
| tetanus | #39 | 350 |
| measles vaccine | #58 | 280 |
| how often do you need hep b vaccine | #3 | 260 |
| chickenpox vaccine | #32 | 260 |
| tetanus pictures images | #2 | 260 |
| mumps | #45 | 230 |
| hep a vaccine | #26 | 230 |
| diphtheria | #58 | 230 |
| how often to get hep b vaccine | #2 | 210 |
| hib | #13 | 200 |
| pneumococcal vaccination | #33 | 190 |
| how often hep b vaccine | #3 | 190 |
| polio photos | #2 | 160 |
| polio disease pictures | #2 | 160 |
| pertussis whooping cough vaccine | #24 | 160 |
| rabies images | #3 | 130 |
| hib vaccine | #40 | 100 |
| whooping cough photos | #1 | 79 |
| rubella disease pictures | #2 | 78 |
| infant immunization schedule | #47 | 78 |
| influenza type b vaccine | #22 | 73 |
| measles virus image | #8 | 71 |
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
- 51% phone
- 49% desktop
United States
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.94 / 10 · ranked #114,026 of all domains
289 referring domains · OpenPageRank
Search traffic
10,400 est. monthly organic visits (US)
4,244 keywords in Google's top 30
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Fastly
- Weight: 1.6 MB · 70 requests
- WordPress theme: imm (child: vi-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Vaccine Information
From the homepage's own structured data (Sep 2026).
Infrastructure
- Registered Sep 2000 (26 years) via GoDaddy.com, LLC, renews Sep 2027
- Hosted on Fastly (151.101.3.52, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Certainly, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 522,493, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.vaccineinformation.org | 26 |
| vaccineinformation.org | 5 |
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Feb 2026