What powers historyofvaccines.org?
Last seen Jun 2026 · 28 technologies across 16 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| haemophilus influenzae type b vaccine | #3 | 4,800 |
| diphtheria | #6 | 3,700 |
| haemophilus influenza | #5 | 1,900 |
| hib vaccine | #6 | 1,700 |
| when did chickenpox vaccine start | #1 | 1,600 |
| when is the best time to get a flu shot | #1 | 1,600 |
| hib shot | #5 | 1,600 |
| when was chickenpox vaccine introduced | #1 | 1,300 |
| when was the chickenpox vaccine introduced | #1 | 1,300 |
| anti vax | #2 | 1,100 |
| haemophilus hib | #7 | 1,000 |
| guinea worm disease | #7 | 850 |
| haemophilus influenzae bacteria | #8 | 800 |
| when should i get a flu shot | #1 | 730 |
| german measles vaccine | #3 | 640 |
| polio | #14 | 620 |
| bacillus influenzae | #9 | 610 |
| hib bacteria | #8 | 600 |
| deadliest diseases | #2 | 580 |
| mumps vaccine | #3 | 530 |
| herd immunity | #6 | 410 |
| best time for flu shot | #1 | 400 |
| where did polio come from | #2 | 390 |
| koch's postulates | #5 | 380 |
| guinea worm | #10 | 370 |
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.
Audience
- 52% phone
- 46% desktop
- 2% tablet
United States
India
United Kingdom
Brazil
Canada
Australia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.03 / 10 · ranked #37,180 of all domains
1,106 referring domains · OpenPageRank
Search traffic
68,600 est. monthly organic visits (US)
12,420 keywords in Google's top 30
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Netlify
- Weight: 10.2 MB · 49 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| ftp.historyofvaccines.org | 19 |
| historyofvaccines.org | 11 |
| www.historyofvaccines.org | 6 |