What powers 
nist.gov?
Last seen Oct 2026 · 101 technologies across 30 categories
Analytics
Caching
CDN
CMS
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Databases
Editors
Font scripts
Hosting
JavaScript frameworks
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Load balancers
Miscellaneous
Network storage
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PaaS
Page builders
Performance
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RUM
Security
Tag managers
UI frameworks
Video players
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Web server extensions
Web servers
Webmail
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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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Nov 2026 *: Restricted (was Blocked)
- Oct 2026 robots.txt appeared
- Oct 2026 * added to robots.txt
- Sep 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| summer undergraduate research fellowship | #1 | 27,500 |
| en to sp | #75 | 23,300 |
| nist | #1 | 15,000 |
| national bureau of standards | #1 | 12,300 |
| quantum computing | #4 | 10,900 |
| contam | #1 | 10,100 |
| si prefixes | #1 | 10,100 |
| cadaver | #2 | 9,800 |
| world trade towers | #8 | 8,900 |
| metric units prefixes | #1 | 7,600 |
| atomic clock | #3 | 6,000 |
| ada augusta lovelace | #3 | 5,900 |
| building 7 | #2 | 5,500 |
| wtc building 7 | #2 | 5,400 |
| carbon monoxide sensor | #8 | 4,800 |
| mep | #1 | 4,600 |
| kelvin | #2 | 4,500 |
| station club fire | #2 | 4,400 |
| programmer lovelace | #3 | 4,400 |
| the station nightclub | #2 | 4,400 |
| nist cyber framework | #1 | 4,400 |
| atomic time | #4 | 4,200 |
| second | #4 | 4,200 |
| nist cybersecurity | #1 | 4,200 |
| ada lovelace | #4 | 4,000 |
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
- 70% desktop
- 29% phone
- 1% tablet
United States
India
Canada
Japan
Brazil
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
9.12 / 10 · ranked #193 of all domains
36,416 referring domains · OpenPageRank
Search traffic
672,200 est. monthly organic visits (US)
110,591 keywords in Google's top 30
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 0.9 MB · 23 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Similar sites
eeoc.gov 3 shared
fdic.gov 5 shared
ttb.gov 4 shared
- treasury.gov 6 shared
- eda.gov 3 shared
dol.gov 5 shared
bsee.gov 3 shared
- performance.gov 3 shared
Closest technology stacks among the highest-authority sites we track; "shared" counts the distinctive technologies in common.
Organisation
- National Institute of Standards and Technology
- Founded: 1901
- Country: United States
From Wikidata (CC0).
Infrastructure
- Registered Oct 1997 (29 years) via get.gov, renews Aug 2027
- Hosted on Cloudflare (172.65.90.24, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed, MTA-STS, BIMI
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 330, 589 hosts
- Verified with: Atlassian, Box, Cisco, Google, Jamf, Microsoft 365, OpenAI
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ncnr.nist.gov | 21 |
| www.physics.nist.gov | 21 |
| rpki-monitor.antd.nist.gov | 19 |
| www.nccoe.nist.gov | 19 |
| www.nist.gov | 19 |
| materialsdata.nist.gov | 18 |
| samate.nist.gov | 18 |
| shop.nist.gov | 18 |
| sibr.nist.gov | 18 |
| www-test.ct.nist.gov | 18 |
| ciks.cbt.nist.gov | 17 |
| ai-challenges.nist.gov | 16 |
| itl.nist.gov | 16 |
| jarvis.nist.gov | 16 |
| physics.nist.gov | 16 |
| pml.nist.gov | 16 |
| tf.nist.gov | 16 |
| www-s.nist.gov | 16 |
| www.cstl.nist.gov | 16 |
| www.ctcms.nist.gov | 16 |
| www.itl.nist.gov | 16 |
| www.ncnr.nist.gov | 16 |
| events.nist.gov | 14 |
| adsorption.nist.gov | 13 |
Full technology history →
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Recent changes
- detected Turbo Oct 2026
- dropped Google Remarketing Tag Sep 2026
- detected lit-element Jul 2026
- detected lit-html Jul 2026