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Changes

https://costdown.org
Compared to previous audit · 1 hour ago View previous audit
2
New issues
2
Resolved
11
score changes
CategoryPreviousCurrentChange
CompositeA (92)A (92)
PerformanceA (96)A+ (97) +1.000
SecurityA (93)A (93)
AccessibilityA (90)A (90)
SEOA (94)A (96) +2.000
InfrastructureA (90)B (88) -2.000
ComplianceB (85)B (85)
ContentB (85)B (85)
SustainabilityA+ (98)A+ (98)
MetricPreviousCurrentChange
Performance 92008800 -400
Accessibility 96009600
Best Practices 1000010000
SEO 91009100
PWA 00
Desktop Performance 99009900
Desktop Accessibility 96009600
Desktop Best Practices 1000010000
Desktop SEO 92009200
FCP 1.24 s1.73 s +483 ms
LCP 3.33 s3.80 s +473 ms
TBT 42 ms60 ms +17 ms
CLS 0.0000.000
Desktop FCP 532 ms530 ms
Desktop LCP 875 ms876 ms
Desktop TBT 0 ms0 ms
Desktop CLS 0.0000.000
TTFB 421 ms220 ms -201 ms
DNS 30 ms1 ms -29 ms
TLS 22 ms22 ms
Connect 17 ms17 ms +1 ms
Total 470 ms380 ms -90 ms

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

WARNING 1 render-blocking <script src> tag(s) without async/defer performance
WARNING https://costdown.org/: 333ms CPU time performance
WARNING https://costdown.org/_next/static/chunks/1255-fc6c...: 421ms CPU time performance
WARNING https://costdown.org/: 437ms CPU time performance
CRITICAL Both www and non-www versions serve content infrastructure
WARNING Cross-Origin-Embedder-Policy header is missing security
WARNING X-Powered-By header reveals technology stack security
WARNING No DMARC record found security
WARNING Skip navigation link is missing (WCAG 2.4.1) accessibility
WARNING All 1 images use legacy formats (JPEG/PNG/GIF) content
WARNING No SPF record found security
WARNING Registrar lock is NOT enabled infrastructure
WARNING No accessibility statement detected compliance
WARNING 1 images significantly larger than display size content
content-security-policy
default-src 'self'; script-src 'self' 'nonce-/PMN6VsihtLgT9v05HuB3Q==' https:... default-src 'self'; script-src 'self' 'nonce-FAU2s+ja38a1BIlQEK26bQ==' https:...
link
</_next/static/media/62c97acc3aa63787-s.p.woff2>; rel=preload; as="font"; cro... </_next/static/media/62c97acc3aa63787-s.p.woff2>; rel=preload; as="font"; cro...

15 headers unchanged

Technology stack unchanged

11 technologies unchanged

Looking ahead

+5 pts
A (92) Could reach A+ (97)
Infrastructure +12Content +8Security +7Accessibility +4Compliance +4Performance +3

Estimate — actual results may vary (12 issues to fix)

Website improvement report — Costdown

August 27, 2026 → August 28, 2026

A A 92 → 92 0 pts

2

Resolved

2

New issues

10

Still remaining

Financial summary

Investment remaining

₫6,150,000 to complete the remaining items

Ongoing risk

₫2,547/month in ongoing exposure

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

Performance by category

MetricBeforeAfterChange
Overall score92 (A)92 (A)0
Performance96 (A)97 (A+)+1
Security93 (A)93 (A)0
Accessibility90 (A)90 (A)0
SEO94 (A)96 (A)+2
Infrastructure90 (A)88 (B)-2
Compliance85 (B)85 (B)0
Content85 (B)85 (B)0
Sustainability98 (A+)98 (A+)0

Resolved (2)

  • https://costdown.org/_next/static/chunks/1255-fc6c...: 421ms CPU time (Performance)

    → Page loads faster for users

  • https://costdown.org/: 437ms CPU time (Performance)

    → Page loads faster for users

Recommended next steps (12)

  • Sprint 1

    Both www and non-www versions serve content (Infrastructure)

  • Sprint 2

    1 render-blocking <script src> tag(s) without async/defer (Performance)

  • Sprint 1

    https://costdown.org/: 333ms CPU time (Performance)

  • Sprint 2

    Cross-Origin-Embedder-Policy header is missing (Security)

  • Sprint 1

    X-Powered-By header reveals technology stack (Security)

  • Sprint 2

    No DMARC record found (Security)

  • Sprint 1

    Skip navigation link is missing (WCAG 2.4.1) (Accessibility)

  • Sprint 2

    All 1 images use legacy formats (JPEG/PNG/GIF) (Content)

  • Sprint 1

    No SPF record found (Security)

  • Sprint 1

    Registrar lock is NOT enabled (Infrastructure)

  • Sprint 1

    No accessibility statement detected (Compliance)

  • Sprint 2

    1 images significantly larger than display size (Content)

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