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Changes

https://costdown.org
Compared to previous audit · just now View previous audit

Amsterdam, Netherlands → Madrid, Spain

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

6
New issues
2
Resolved
16
score changes
CategoryPreviousCurrentChange
CompositeA (93)A (92) -1.000
PerformanceA+ (97)A (95) -2.000
SecurityA (93)A (93)—
AccessibilityA (90)A (90)—
SEOA+ (97)A+ (97)—
InfrastructureA (90)B (83) -7.000
ComplianceB (85)B (85)—
ContentB (85)B (85)—
SustainabilityA+ (98)A+ (98)—
MetricPreviousCurrentChange
Performance 95007900 -1600
Accessibility 96009600—
Best Practices 1000010000—
SEO 91009100—
PWA 00—
Desktop Performance 98009900 +100
Desktop Accessibility 96009600—
Desktop Best Practices 1000010000—
Desktop SEO 92009200—
FCP 1.25 s1.37 s +123 ms
LCP 2.82 s3.49 s +667 ms
TBT 58 ms456 ms +398 ms
CLS 0.0000.000—
Desktop FCP 548 ms516 ms -32 ms
Desktop LCP 1.05 s1.02 s -30 ms
Desktop TBT 0 ms35 ms +35 ms
Desktop CLS 0.0000.000—
TTFB †332 ms179 ms -153 ms
DNS †39 ms19 ms -21 ms
TLS †22 ms8 ms -14 ms
Connect †17 ms3 ms -14 ms
Total †458 ms474 ms +16 ms

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

WARNING Unattributable: 358ms CPU time performance
WARNING 1 render-blocking <script src> tag(s) without async/defer performance
WARNING https://costdown.org/_next/static/chunks/1255-fc6c...: 324ms CPU time performance
WARNING https://costdown.org/: 892ms CPU time performance
WARNING https://costdown.org/_next/static/chunks/4bd1b696-...: 323ms CPU time performance
WARNING IPv6 DNS records exist but server is not reachable infrastructure
WARNING https://costdown.org/_next/static/chunks/1255-fc6c...: 263ms CPU time performance
WARNING https://costdown.org/: 373ms CPU time performance
CRITICAL Both www and non-www versions serve content infrastructure
WARNING 1 images significantly larger than display size content
WARNING X-Powered-By header reveals technology stack security
WARNING Cross-Origin-Embedder-Policy header is missing security
WARNING All 1 images use legacy formats (JPEG/PNG/GIF) content
WARNING No SPF record found security
WARNING Skip navigation link is missing (WCAG 2.4.1) accessibility
WARNING Registrar lock is NOT enabled infrastructure
WARNING No accessibility statement detected compliance
WARNING No DMARC record found security
content-security-policy
default-src 'self'; script-src 'self' 'nonce-KaLZNAgMuQ5N2C5RGOXh5A==' https:... → default-src 'self'; script-src 'self' 'nonce-JdZmv6kbbkCm8wwEigumKw==' 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 +14Content +8Security +7Performance +5Accessibility +4Compliance +4

Estimate — actual results may vary (16 issues to fix)

Website improvement report — Costdown

August 27, 2026 → August 27, 2026

A A 93 → 92 -1 pts

2

Resolved

6

New issues

10

Still remaining

Financial summary

Investment remaining

₫6,750,000 to complete the remaining items

Ongoing risk

₫3,405/month in ongoing exposure

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

Performance by category

MetricBeforeAfterChange
Overall score93 (A)92 (A)-1
Performance97 (A+)95 (A)-2
Security93 (A)93 (A)0
Accessibility90 (A)90 (A)0
SEO97 (A+)97 (A+)0
Infrastructure90 (A)83 (B)-7
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...: 263ms CPU time (Performance)

    → Page loads faster for users

  • https://costdown.org/: 373ms CPU time (Performance)

    → Page loads faster for users

Recommended next steps (16)

  • Sprint 1

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

  • Sprint 1

    Unattributable: 358ms CPU time (Performance)

  • Sprint 2

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

  • Sprint 1

    https://costdown.org/_next/static/chunks/1255-fc6c...: 324ms CPU time (Performance)

  • Sprint 1

    https://costdown.org/: 892ms CPU time (Performance)

  • Sprint 1

    https://costdown.org/_next/static/chunks/4bd1b696-...: 323ms CPU time (Performance)

  • Sprint 2

    IPv6 DNS records exist but server is not reachable (Infrastructure)

  • Sprint 2

    1 images significantly larger than display size (Content)

  • Sprint 1

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

  • Sprint 2

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

  • Sprint 2

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

  • Sprint 1

    No SPF record found (Security)

  • Sprint 1

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

  • Sprint 1

    Registrar lock is NOT enabled (Infrastructure)

  • Sprint 1

    No accessibility statement detected (Compliance)

…and 1 more recommended item(s)

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