Over the 2 147 day period beginning January 6, 2019, the report shows 16 checks were done of historyofvaccines.org's operability. Of total assessments conducted, historyofvaccines.org was available 16 times, most recently on November 16, 2024, shown by a 200 status code. Historyofvaccines.org faced no inaccessibility based on all reviews performed as of November 22, 2024. The responses obtained as of November 22, 2024, confirm that no responses have error statuses. The recorded response time differed for historyofvaccines.org, being 0.552 seconds on November 16, 2024, against 0.936 seconds on average.