audubon.org
readable
A Excellent overall on the measured subjects
Loading speed is diagnostic only; it does not affect this grade or search ranking.
| Subject | Weight | Score |
|---|---|---|
| Interruption | 35.71% | not scored |
| Readability | 28.57% | 100 |
| Accessibility and keyboard | 21.43% | 89 |
| Stability and weight | 14.29% | 76 |
This letter rests on 64% of the grade. The subjects marked “not measured” are left out rather than scored as zero (which would fail a site for something nobody looked at) or as full marks (which would be a claim we have not earned). How this is worked out.
- Largest paint
- 0.3–12.7s
- Paywall
- none
- Ad requests
- 16
- Tracker requests
- 40
- Page weight
- 1.8 MB
- Readability
- 19px type · 1.8 line height · 63 characters per line · 16.5:1 contrast
- Accessibility
- 1 automated check failed (1 serious)
- Green hosting
- not measured
- Measured
- 2026-09-01
Observed interruptions
Ad and tracker counts above are network requests, not counts of visible ads or separate companies. They do not affect the interruption score.
Interruption evidence is incomplete or needs review, so this subject is not scored. Missing evidence is not treated as an interruption-free page.
The type, and who can use it
Measured on 1 rendered page; latest measurement 2026-09-05. Every number is a mechanical fact about the page, not a judgment of its design.
| What | Measured | The bar |
|---|---|---|
| Body type size | 19px | 16px, the browser default |
| Characters per line | 63 | 45–90 |
| Line height | 1.79 | 1.5 (WCAG 1.4.8) |
| Text contrast | 16.5:1 | 4.5:1 (WCAG AA), 7:1 (AAA) |
| Text column | 47% of the window | at least 45% |
| Reflows at phone width | yes | WCAG 1.4.10 |
| Dark mode | no | noted, not scored |
| Automated accessibility checks | 1 automated check failed (1 serious): link-name | WCAG 2.1 A and AA, via axe-core |
| Keyboard | no trap; focus visible on 100% of stops | never trapped, always visible |
| Structure | main landmark, 1 h1, no skipped heading levels | a main landmark, one h1, no skips |
| Alt text | 50% of 2 content images described | every content image |
| Reader mode | parses | parses (Firefox’s Readability) |
Automated accessibility checks catch an estimated 30–40% of real problems, so “no automated violations detected” is a floor, not a certificate. We never say “accessible”. How these are scored.
Measurement dates
Oldest evidence 50 days old. At least one subject is due for rechecking (30 days or older). Dates refer to the evidence, never the card rebuild.
- Access and interruptions:
- Readability and accessibility:
Measurement history
Newest 5 saved observations. Each describes a sampled page at that time; older, failed or held observations do not override the current reviewed card. Raw automated findings may have been superseded by later review or detector replay. No previous grade is inferred.
Read dated observations
- — Readability and accessibility observation; prose source p; desktop type 19px; phone overflow not observed
https://www.audubon.org/photography/awards/official-contest-rules
Evidence source: readability-top5000.jsonl · observation 2b8b49e699da - — Readability and accessibility observation; desktop type 19px; phone overflow not observed
https://www.audubon.org/photography/awards/official-contest-rules
Evidence source: readability-top5000.aborted-desktop-resize.jsonl · observation 0b3872ed8404 - — Access observation: pass
https://www.audubon.org/florida/news/seaside-scrape-nests-sea-and-shorebird-survival-strategy
Evidence source: verdicts-top5000.jsonl · observation fb43c45148ac - — Access observation: pass
https://www.audubon.org/washington/news/when-ocean-gets-too-warm-birds-go-hungry
Evidence source: verdicts-top5000.jsonl · observation 068bdcb1b9e1 - — Access observation: pass
https://www.audubon.org/connecticut/news/banding-grand-slam-bent-of-river-audubon-center
Evidence source: verdicts-top5000.jsonl · observation 86b6d837120e
How we know
| Pages rendered | 3 |
|---|---|
| Site verdict | errors dropped; majority of remaining; ties to the stricter verdict; active reviewed exclusions override admission |
| Figures shown | numeric measurements generally use medians; interruption costs, overflow, keyboard traps and accessibility failures retain the strongest observed finding |
| Speed varied | 0.3s to 12.7s across 3 pages, so we show the range rather than one number. A spread that wide usually means our measurement, not the site. |
| Cited by | 1,754 encyclopedia articles |
Think this is wrong? It may well be — the measurements cover only a handful of pages. Any reviewed admission decision and its dated evidence are shown above. Re-measurement on request is not built yet, so there is no button here that would do anything. When it exists it will be free and it will be on this page.