Skip to content

Changes

https://www.nasa.gov
Compared to previous audit · 1 day ago View previous audit

Santa Clara, United States → New York, United Stated

These audits ran from different locations. Timing metrics (TTFB, DNS, TLS) may reflect network path differences rather than site changes.

17
New issues
17
Resolved
21
score changes
CategoryPreviousCurrentChange
CompositeC (73)C (72) -1.000
PerformanceC (70)C (75) +5.000
SecurityD (61)D (60) -1.000
AccessibilityD (62)D (62)—
SEOA (90)A (90)—
InfrastructureA (95)B (83) -12.000
ComplianceC (78)C (75) -3.000
ContentA (95)A (96) +1.000
SustainabilityD (59)D (59)—
MetricPreviousCurrentChange
Performance 50004600 -400
Accessibility 89008900—
Best Practices 96009600—
SEO 1000010000—
PWA 00—
Desktop Performance 76006300 -1300
Desktop Accessibility 93009300—
Desktop Best Practices 96009600—
Desktop SEO 1000010000—
FCP 1.84 s1.90 s +60 ms
LCP 4.01 s4.43 s +426 ms
TBT 870 ms1.01 s +144 ms
CLS 0.2520.268 +0.016
Desktop FCP 552 ms539 ms -12 ms
Desktop LCP 1.67 s2.97 s +1.30 s
Desktop TBT 26 ms52 ms +26 ms
Desktop CLS 0.3260.429 +0.103
TTFB †48 ms15 ms -34 ms
DNS †42 ms7 ms -35 ms
TLS †4 ms4 ms +0 ms
Connect †1 ms1 ms +0 ms
Total †50 ms16 ms -34 ms

† Timing metrics may vary by worker location and do not necessarily indicate site changes.

Projected vs. Actual

Previous
C 73
Projected
A 95
Actual
C 72
Fell short of projection
17 issues resolved since last audit
48 issues remaining
Resolving remaining issues could reach A

Estimate — actual results may vary

CRITICAL 23 image-only link(s) without alt text accessibility
CRITICAL Page weighs 16.3 MB (9.0 MB transferred) performance
CRITICAL 2.54g CO2 per page view sustainability
WARNING 125 HTTP requests — consider bundling or reducing performance
WARNING https://www.googletagmanager.com/gtag/js?id=G-82GW...: 359ms CPU time performance
WARNING 2.54g CO2 — above the median website (0.60g) sustainability
WARNING https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 392ms CPU time performance
WARNING Trackers detected but no cookie policy found compliance
WARNING Unattributable: 798ms CPU time performance
WARNING IPv6 DNS records exist but server is not reachable infrastructure
WARNING Trackers detected but no privacy policy found compliance
WARNING Third-party code accounts for 72% of page weight (6.5 MiB of 9.0 MiB) performance
WARNING https://www.nasa.gov/: 3674ms CPU time performance
WARNING Images are 5.9 MB — compress or use modern formats performance
WARNING https://www.nasa.gov/_static/??-eJyNzk0OAiEMBeALyR...: 617ms CPU time performance
WARNING https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 57 KB unused (39%) performance
WARNING No privacy policy link detected compliance
CRITICAL 2.58g CO2 per page view sustainability
CRITICAL Domain has EXPIRED infrastructure
CRITICAL Page weighs 16.4 MB (9.1 MB transferred) performance
WARNING 2.58g CO2 — above the median website (0.60g) sustainability
WARNING Unattributable: 523ms CPU time performance
WARNING Third-party code accounts for 74% of page weight (6.7 MiB of 9.1 MiB) performance
WARNING 131 HTTP requests — consider bundling or reducing performance
WARNING https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 58 KB unused (40%) performance
WARNING No meta description tag found seo
WARNING https://www.googletagmanager.com/gtag/js?id=G-82GW...: 345ms CPU time performance
WARNING https://www.nasa.gov/: 2381ms CPU time performance
WARNING Images are 6.0 MB — compress or use modern formats performance
WARNING https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 356ms CPU time performance
WARNING Page weight 9.1 MB exceeds 1 MB target by 8.1 MB performance
WARNING 86 third-party resources (74% of weight) performance
WARNING GDPR Article 13 disclosure coverage: 0 / 8 categories compliance
WARNING https://www.nasa.gov/_static/??-eJyNzk0OAiEMBeALyR...: 557ms CPU time performance
CRITICAL No Content-Security-Policy header found security
CRITICAL 18 link(s) with no accessible text accessibility
CRITICAL og:image is not reachable content
CRITICAL Content-Security-Policy header is missing security
CRITICAL No H1 heading found accessibility
CRITICAL 3 button(s) with no accessible text accessibility
WARNING External script from dap.digitalgov.gov lacks integrity attribute security
WARNING Permissions-Policy header is missing security
WARNING Cross-Origin-Embedder-Policy header is missing security
WARNING 1 internal links have no anchor text seo
WARNING JavaScript is 2.2 MB — consider code splitting or lazy loading performance
WARNING https://www.googletagmanager.com/gtag/js?id=G-82GW...: 63 KB unused (40%) performance
WARNING No DMARC record found security
WARNING https://www.googletagmanager.com/gtm.js?id=GTM-NLJ...: 61 KB unused (47%) performance
WARNING External script from www.youtube.com lacks integrity attribute security
WARNING Skip navigation link is missing (WCAG 2.4.1) accessibility
WARNING No name or short_name accessibility
WARNING 10 internal links use generic anchor text seo
WARNING Cross-Origin-Opener-Policy header is missing security
WARNING External script from www.googletagmanager.com lacks integrity attribute security
WARNING No Permissions-Policy header security
WARNING 20 link(s) open in new tab without warning accessibility
WARNING Referrer-Policy header is missing security
WARNING https://www.nasa.gov/_static/??-eJyNzk0OAiEMBeALyR...: 36 KB unused (57%) performance
WARNING Title is only 4 characters — consider expanding seo
WARNING CNAME record at zone apex infrastructure
WARNING External script from cdn.parsely.com lacks integrity attribute security
WARNING 10 link(s) with generic text accessibility
WARNING Terms of Service not detected compliance
WARNING Missing required property "name" for Organization content
WARNING X-Content-Type-Options header is missing security
x-rq
jfk1 0 40 9980 → sjc3 0 40 9980

10 headers unchanged

Technology stack unchanged

17 technologies unchanged

Looking ahead

+22 pts
C (72) Could reach A (94)
Accessibility +30Security +30Performance +25Sustainability +14Compliance +13SEO +10Infrastructure +8Content +4

Estimate — actual results may vary (48 issues to fix)

Website improvement report — Nasa

April 4, 2026 → April 6, 2026

C C 73 → 72 -1 pts

17

Resolved

17

New issues

31

Still remaining

Financial summary

Investment delivered

$3,183 in development time

Investment remaining

$8,442 to complete the remaining items

Ongoing risk

$2/month in ongoing exposure

Figures are estimates based on local developer hourly rate, industry CPC, and regulatory fine ranges.

Performance by category

MetricBeforeAfterChange
Overall score73 (C)72 (C)-1
Performance70 (C)75 (C)+5
Security61 (D)60 (D)-1
Accessibility62 (D)62 (D)0
SEO90 (A)90 (A)0
Infrastructure95 (A)83 (B)-12
Compliance78 (C)75 (C)-3
Content95 (A)96 (A)+1
Sustainability59 (D)59 (D)0

Resolved (17)

  • 2.58g CO2 per page view (Sustainability)

    → Lower carbon footprint per page view

  • 2.58g CO2 — above the median website (0.60g) (Sustainability)

    → Lower carbon footprint per page view

  • Unattributable: 523ms CPU time (Performance)

    → Page loads faster for users

  • Third-party code accounts for 74% of page weight (6.7 MiB of 9.1 MiB) (Performance)

    → Page loads faster for users

  • 131 HTTP requests — consider bundling or reducing (Performance)

    → Page loads faster for users

  • Domain has EXPIRED (Infrastructure)

    → More reliable delivery

  • https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 58 KB unused (40%) (Performance)

    → Page loads faster for users

  • No meta description tag found (SEO)

    → Better search engine visibility

  • Page weighs 16.4 MB (9.1 MB transferred) (Performance)

    → Page loads faster for users

  • https://www.googletagmanager.com/gtag/js?id=G-82GW...: 345ms CPU time (Performance)

    → Page loads faster for users

  • https://www.nasa.gov/: 2381ms CPU time (Performance)

    → Page loads faster for users

  • Images are 6.0 MB — compress or use modern formats (Performance)

    → Page loads faster for users

  • https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 356ms CPU time (Performance)

    → Page loads faster for users

  • Page weight 9.1 MB exceeds 1 MB target by 8.1 MB (Performance)

    → Page loads faster for users

  • 86 third-party resources (74% of weight) (Performance)

    → Page loads faster for users

…and 2 more resolved issue(s)

Recommended next steps (48)

  • Sprint 1

    23 image-only link(s) without alt text (Accessibility)

  • Sprint 1

    Page weighs 16.3 MB (9.0 MB transferred) (Performance)

  • Sprint 1

    2.54g CO2 per page view (Sustainability)

  • Sprint 2

    No Content-Security-Policy header found (Security)

  • Sprint 1

    18 link(s) with no accessible text (Accessibility)

  • Sprint 1

    og:image is not reachable (Content)

  • Sprint 2

    Content-Security-Policy header is missing (Security)

  • Sprint 1

    No H1 heading found (Accessibility)

  • Sprint 1

    3 button(s) with no accessible text (Accessibility)

  • Sprint 2

    125 HTTP requests — consider bundling or reducing (Performance)

  • Sprint 1

    https://www.googletagmanager.com/gtag/js?id=G-82GW...: 359ms CPU time (Performance)

  • Sprint 2

    2.54g CO2 — above the median website (0.60g) (Sustainability)

  • Sprint 1

    https://www.googletagmanager.com/gtag/js?id=G-CSLL...: 392ms CPU time (Performance)

  • Sprint 2

    Trackers detected but no cookie policy found (Compliance)

  • Sprint 1

    Unattributable: 798ms CPU time (Performance)

…and 33 more recommended item(s)

Send Feedback