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SGSiteGraph

nsta.org

Homepage | NSTA

Last scanned Jul 26, 2026, 5:18 AM · 1 view

89

Overall score

Great

Summary

This website uses Angular hosted on Fastly behind Fastly CDN. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing meta description.

United States
Hosted on Fastly

Top issues to fix

6 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 4 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

70

SEO

4 issue(s) found

100

Performance

397 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

X (Twitter)

Meta tags

Title
Homepage | NSTA
Description
Canonical
https://www.nsta.org/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

AngularDrupaljQueryGoogle AnalyticsGoogle AdsMeta PixelNginx

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
23.185.0.4
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 23.185.0.4
AAAA
  • 2620:12a:8001::4
  • 2620:12a:8000::4
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
nsta.org
Valid from
Jun 12, 2026
Valid to
Sep 10, 2026
Days until expiry
44
SAN domains
new.nsta.org, nsta.org, science.nsta.org, www.nsta.org

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 1 · H3 10

Links

96 internal · 15 external · 4 broken

Images

16 total · 2 missing alt

Scripts / Styles

94 scripts · 34 stylesheets

JS / CSS size

865 KB · 276 KB

Page size

133 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
33
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://nsta.org
Final URL
https://www.nsta.org/
HTTP status
200
HTTP version
HTTP/2
Response time
395 ms
HTML size
133 KB
Redirect chain
https://nsta.org → https://www.nsta.org/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does nsta.org use?
nsta.org is built with Angular, Drupal, jQuery, Google Analytics, Google Ads, Meta Pixel, Nginx.
Is nsta.org secure (HTTPS)?
Yes. nsta.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 10, 2026.
Who hosts nsta.org?
nsta.org is hosted on Fastly, behind Fastly CDN.
What is nsta.org's SEO score?
nsta.org scored 70/100 for SEO in the latest analysis (fair).
What is nsta.org's overall website score?
nsta.org has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.