vital-scans open kwaliteitsregister

nih.gov: History & Trends

How this site has changed over time. The weekly overview answers "what should I fix now?"; this page answers "how are we trending?"

Tracking since 2026-W25 — 16 weeks recorded. Accessibility score is verslechterend (-4 ptn sinds 2026-W36). Download the full trend series: CSV · JSON.

How the latest week compares

Latest week (2026-W40) vs. earlier look-back windows. positive/negative is relative to each measure — coloured by better or worse
MeasureNowvs 4 wk agovs 13 wk ago
Accessibility score59-4 slechter-26 slechter
Mediaan axe-overtredingen / pagina9+1 slechter+6 slechter
Median page weight (KB)62 KB+2 KB slechter-3 KB beter
Leesgemak (Flesch)47.5+4.5 betern.v.t.
Standards checks passing (%)71%-2% slechtern.v.t.

Accessible? — severity over time

Pagina's getroffen per axe-ernst over 16 weken (lager is beter)
Kritiek Ernstig Matig Gering W25W32W4069300
Pagina's getroffen per axe-ernst, per week
WeekKritiekErnstigMatigGering
2026-W2506101
2026-W260110
2026-W270120
2026-W280110
2026-W2910232966930276
2026-W3012833596850351
2026-W3112033606899351
2026-W3211833526923349
2026-W33024551
2026-W34122484
2026-W35121451
2026-W36222504
2026-W37223570
2026-W38124503
2026-W39024536
2026-W40017282

Fast? — Lighthouse over time

Lighthouse-categoriescores over 16 weken
Prestaties Toegankelijkheid Best practices SEO W25W32W401000
Lighthouse-categoriescores per week
WeekPrestatiesToegankelijkheidBest practicesSEO
2026-W25n/an/an/an/a
2026-W26n/an/an/an/a
2026-W27n/an/an/an/a
2026-W28n/an/an/an/a
2026-W29619596100
2026-W30449596100
2026-W31439596100
2026-W32469596100
2026-W33379577100
2026-W3434937796
2026-W35399577100
2026-W36309677100
2026-W37n/an/an/an/a
2026-W38359577100
2026-W39309577100
2026-W4035967796

Lighthouse-trendpunten zijn gebaseerd op bemonsterde pagina's en kunnen van week tot week variëren, afhankelijk van welke pagina's zijn bemonsterd.

Sustainable? — page weight, requests & carbon over time

Median page weight (KB) over 16 weken — beter (65 KB → 62 KB)
W25W32W4020760
Median page weight (KB) per week
WeekMedian page weight (KB)
2026-W2565 KB
2026-W2665 KB
2026-W2765 KB
2026-W2863 KB
2026-W292040 KB
2026-W302052 KB
2026-W311397 KB
2026-W322076 KB
2026-W3363 KB
2026-W3463 KB
2026-W3563 KB
2026-W3660 KB
2026-W3762 KB
2026-W3862 KB
2026-W3962 KB
2026-W4062 KB
Mediaan verzoeken per pagina over 16 weken — ongewijzigd
W25W32W40990
Mediaan verzoeken per pagina per week
WeekMediaan verzoeken per pagina
2026-W257
2026-W267
2026-W277
2026-W287
2026-W2998
2026-W3098
2026-W3199
2026-W3298
2026-W336
2026-W347
2026-W356
2026-W366
2026-W376
2026-W386
2026-W396
2026-W407
Mean CO₂ per page (g) over 16 weken — beter (0.0282 g → 0.0239 g)
W25W32W400.29290
Mean CO₂ per page (g) per week
WeekMean CO₂ per page (g)
2026-W250.0282 g
2026-W260.0098 g
2026-W270.0098 g
2026-W280.0096 g
2026-W290.2785 g
2026-W300.2821 g
2026-W310.2597 g
2026-W320.2929 g
2026-W330.0125 g
2026-W340.0126 g
2026-W350.0106 g
2026-W360.0096 g
2026-W370.0102 g
2026-W380.0114 g
2026-W390.0208 g
2026-W400.0239 g

Findable? — readability over time

Leesgemak (Flesch) over 14 weken — beter (43 → 47.5)
W25W33W4049.50
Leesgemak (Flesch) per week
WeekLeesgemak (Flesch)
2026-W2543
2026-W2849.5
2026-W2945
2026-W3044
2026-W3144
2026-W3243.9
2026-W3347
2026-W3439.2
2026-W3541
2026-W3643
2026-W3743.3
2026-W3842.6
2026-W3943.6
2026-W4047.5
Reading grade (Flesch-Kincaid) over 14 weken — slechter (12 → 12.3)
W25W33W4014.50
Reading grade (Flesch-Kincaid) per week
WeekReading grade (Flesch-Kincaid)
2026-W2512
2026-W2810.5
2026-W2912
2026-W3012.5
2026-W3112.4
2026-W3212.5
2026-W3312
2026-W3414.5
2026-W3514
2026-W3613
2026-W3712.2
2026-W3812.5
2026-W3912.6
2026-W4012.3
Woorden per pagina (mediaan) over 15 weken — 275 → 729
W25W33W407770
Woorden per pagina (mediaan) per week
WeekWoorden per pagina (mediaan)
2026-W25275
2026-W2623
2026-W28417
2026-W29731
2026-W30744
2026-W31732
2026-W32734
2026-W33712
2026-W34649
2026-W35600
2026-W36751
2026-W37777
2026-W38777
2026-W39717
2026-W40729

Trustworthy? — technology & standards over time

Technologies detected over 12 weken — ongewijzigd
W28W33W40140
Technologies detected per week
WeekTechnologies detected
2026-W2814
2026-W2914
2026-W3014
2026-W3114
2026-W3214
2026-W3314
2026-W3414
2026-W3514
2026-W3614
2026-W3714
2026-W3914
2026-W4014
Standards checks passing (%) over 14 weken — slechter (73% → 71%)
W25W33W40730
Standards checks passing (%) per week
WeekStandards checks passing (%)
2026-W2573%
2026-W2656%
2026-W2956%
2026-W3072%
2026-W3172%
2026-W3272%
2026-W3373%
2026-W3473%
2026-W3572%
2026-W3673%
2026-W3773%
2026-W3872%
2026-W3973%
2026-W4071%
Security checks passing (%) over 12 weken — slechter (75% → 63%)
W25W33W40880
Security checks passing (%) per week
WeekSecurity checks passing (%)
2026-W2575%
2026-W2988%
2026-W3088%
2026-W3188%
2026-W3288%
2026-W3363%
2026-W3463%
2026-W3663%
2026-W3763%
2026-W3863%
2026-W3963%
2026-W4063%