Site Health Report Card

nih.gov

  • NIH
  • Reference · Health research
  • Online since 1994
  • Checked Sep 30, 2026

“Peer reviewed and pretty quick.”

Pica's take. The National Institutes of Health runs a calm, light, well-locked site with barely any outside scripts. It is exactly what you want from a research institution: careful, fast, and not trying to sell you anything.

A96 / 100

Overall health

#14 of 100 sites graded

  • Largest paint

    2.3s

  • Page weight

    2.1 MB

  • Requests

    60

  • Third-party scripts

    5

  • Domain age

    32 yrs

  • Blocklists

    0 / 60

Timed by our own browser

Site Speed

A
95

In excellent shape.

Largest paint (LCP)
2.3s
First paint (FCP)
1.0s
Server response (TTFB)
300 ms
Layout shift (CLS)
0.02
Page weight
2.1 MB
Requests
60

Pica: Two megabytes. Double-blind tested.

Run the Speed Test on nih.gov

A look from the outside

Security Check

A
95

In excellent shape.

HTTPS everywhere
Yes
HSTS
Preloaded
TLS
1.3
Content Security Policy
Partial
Mixed content
None
Third-party scripts
5

Pica: Five outside scripts. Controlled trial.

Run the Hack Check on nih.gov

What the internet says about it

Reputation Check

A
95

In excellent shape.

Domain age
32 years
Blocklists
0 of 60
Malware reports
None
Email authentication
DMARC reject
Certificate
Valid · 200 days
Lookalike domains
Some

Pica: Thirty-two years online. Citations included.

Run the Tracker Check on nih.gov

Is it in a good neighborhood?

Hosting Check

A+
100

In excellent shape.

Network
NIH · own network
Content delivery
Akamai
IPv6
Yes
HTTP/3
Yes
Shared-IP neighbors
Government properties
Flagged neighbors
0

Pica: Own network, Akamai in front.

Run the TTFB Check on nih.gov

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How we grade. Four checks, weighted equally: speed timed by our own browser, a security look from the outside, public reputation signals, and the network the site lives on. A look from the outside is not a server audit.