gia.edu
Gemological Institute Of America | All About Gemstones - GIA
Last scanned Jul 26, 2026, 5:17 AM · 2 views
Overall score
Fair
Summary
Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services. This website uses Next.js. SEO is good (80/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance fair (70/100). Top issue: No H1 heading found.
Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
Top issues to fix
9 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Slow estimated load (8.0s)
PerformanceUse a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
+3 more issues — details in the sections below.
SEO
3 issue(s) found
Performance
8.04 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Gemological Institute Of America | All About Gemstones - GIA
- Description
- Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
- Canonical
- https://www.gia.edu
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- DigiCert Inc
- Subject
- www.gia.edu
- Valid from
- May 5, 2026
- Valid to
- Nov 19, 2026
- Days until expiry
- 116
- SAN domains
- www.gia.edu, 4cs-uat.gia.edu, 4cs.gia.edu, 4csblog.gia.edu, admissions.gia.edu, appointments.gia.edu, apps.gia.edu, autodiscover.gia.edu, bangkok.gia.edu, blackboard.gia.edu, careerfair.gia.edu, carlsbad.gia.edu, china.gia.edu, collective.gia.edu, cppm.gia.edu, data.gia.edu, dig-dev.gia.edu, dig.gia.edu, facetware.gia.edu, gemkids.gia.edu, gia.edu, giaindia.in, giaportal.gia.edu, giataiwan.com.tw, github.gia.edu, hongkong.gia.edu, howtobuyagemstone.gia.edu, images.gia.edu, info.gia.edu, intake.gia.edu, javaapps.gia.edu, labpdf.gia.edu, labwlprd3.gia.edu, labws.gia.edu, leep.gia.edu, library.gia.edu, library2.gia.edu, london.gia.edu, my.gia.edu, myapps.gia.edu, mylab2.gia.edu, newyork.gia.edu, notification.gia.edu, pdf.gia.edu, rbp.gia.edu, rdmb.dev.gia.edu, rdweb.gia.edu, reportcheck.gia.edu, retailer.gia.edu, securefile.gia.edu, securelogin.gia.edu, sharepoint.gia.edu, siaeast.gia.edu, siaeast.uat.gia.edu, siawest.gia.edu, siawest.uat.gia.edu, sparkle.gia.edu, symposium.gia.edu, testmyapps.gia.edu, tools.gia.edu, traps.gia.edu, webapps.gia.edu, webschedule.gia.edu, www.giaindia.in, www.giataiwan.com.tw, www.reportcheck.gia.edu
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 4 cookie(s) observed
Content & assets
Headings
H1 0 · H2 5 · H3 17
Links
47 internal · 19 external · 18 broken
Images
27 total · 0 missing alt
Scripts / Styles
122 scripts · 6 stylesheets
JS / CSS size
286 KB · 0 B
Page size
381 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://gia.edu
- Final URL
- https://www.gia.edu/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 8.03 s
- HTML size
- 381 KB
- Redirect chain
- https://gia.edu → https://www.gia.edu/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does gia.edu use?
- gia.edu is built with Next.js, Google Analytics.
- Is gia.edu secure (HTTPS)?
- Yes. gia.edu uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Nov 19, 2026.
- Who hosts gia.edu?
- Hosting provider information for gia.edu is not available yet.
- What is gia.edu's SEO score?
- gia.edu scored 80/100 for SEO in the latest analysis (great).
- What is gia.edu's overall website score?
- gia.edu has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card