Independent technical audit

ytplaylistlength.com

Overall AI readiness score

A combined result across all audit signals.

Excellent

AI readiness audit: 9/2/2026Public technical data

Overall AI readiness assessment

How ready ytplaylistlength.com is for AI systems

84/100

YouTube Playlist Length Calculator (ytplaylistlength.com) received an AI-readiness score of 84/100 in an automated technical audit. llms.txt was accessible, llms-full.txt was not found, and ai.txt was not found. The robots.txt analysis found 0 explicitly allowed and 0 blocked AI crawlers, with 1 declared sitemap. Homepage markup completeness was 90%; Schema.org types included Organization, WebSite and 11 OpenGraph tags were detected. Results reflect the public site response observed on 2026-09-02T02:55:20.759Z.

Audit context

llms.txt is accessible and contains 510 tokens. No accessible llms-full.txt was detected, so deeper context still has to be assembled from regular pages. No separate ai.txt policy was detected; it is optional, but can clarify training, retrieval, and attribution preferences.

robots.txt is available. 11 of 11 tracked AI bots are not blocked. Declared sitemaps: 1. The homepage exposes Schema.org types Organization, WebSite; 11 OpenGraph tags were found and markup completeness is 90%.

The mobile Lighthouse profile adds Performance 95/100, Accessibility 98/100, Best Practices 100/100, SEO 100/100, and experimental Agentic Browsing 67/100. These signals have a limited weight: they complement rather than replace llms.txt, robots.txt, and structured-data checks.

Confirmed strengths

Accessible llms.txt
1 sitemap declaration
Schema.org: Organization, WebSite
Complete social metadata

Priority improvements

1Add llms-full.txt for richer first-party context.

llms.txt tokens510

llms-full.txt tokens—

ai.txt

sitemap.xml

Google Lighthouse technical profile

A mobile Lighthouse measurement. Google’s experimental Agentic Browsing category is explained separately and does not replace the broader llmsmap AI-readiness score.

Mobile · Lighthouse

Performance

Accessibility

100

Best Practices

100

Technical SEO

Agentic Browsing

What these results mean

The mobile page renders efficiently; its largest visible content block appeared in 2.7 s.

Accessibility scored 98/100, Best Practices 100/100, and technical SEO 100/100. The experimental Agentic Browsing category scored 67/100. It measures signals Google currently tests for software agents and is shown separately from the llmsmap AI-readiness score.

Free the main thread and accelerate the first view

Split long JavaScript tasks, defer non-critical scripts and styles, and shorten blocking request chains. This helps the primary content appear sooner and makes controls usable earlier.

Reduce code that loads without helping the page

Remove unused CSS and JavaScript, load heavy widgets on demand, and limit third-party scripts. Less code means less parsing and background work on the device.

Reduce network delay

Improve server response time, remove unnecessary redirects and repeat downloads, and use compression, caching, and selective preconnect hints.

Make controls unambiguous

Give buttons and links accessible names, associate labels with fields, and use ordered headings and semantic regions. The same structure helps screen readers and software agents understand actions.

FCP1.7 s

First content

LCP2.7 s

Main content

CLS0.001

Layout stability

TBT10 ms

Blocking time

SI3.3 s

Visual speed

Metric glossary

FCP · First content: When the first text or image appeared on screen.
LCP · Main content: When the largest visible element in the first viewport rendered.
CLS · Layout stability: How much content shifted unexpectedly while loading; lower is better.
TBT · Blocking time: How long the browser main thread could not respond quickly to input.
SI · Visual speed: How quickly the visible viewport filled with content.

9/2/2026Lighthouse 13.4.1Mobile profile

AI readiness checks

Machine-readable files, crawler policy, discovery, and homepage markup.

llms.txt

File found and accessible

https://ytplaylistlength.com/llms.txt

llms-full.txt

Full version was not found

ai.txt

ai.txt file was not found

robots.txt

File found

https://ytplaylistlength.com/robots.txt

Sitemap in robots.txt1

1 sitemap found

Schema.org (JSON-LD)

Types: Organization, WebSite

OpenGraph90%

11 OG tags found

AI bot access

Based on robots.txt analysis

GPTBotNot mentioned

OAI-SearchBotNot mentioned

ChatGPT-UserNot mentioned

Google-ExtendedNot mentioned

ClaudeBotNot mentioned

Claude-SearchBotNot mentioned

Claude-UserNot mentioned

BytespiderNot mentioned

CCBotNot mentioned

PerplexityBotNot mentioned

Perplexity-UserNot mentioned

Sitemaps

Declared discovery routes for crawlers and agents.

https://ytplaylistlength.com/sitemap.xml

OpenGraph tags

Social preview metadata found on the homepage.

Markup completeness: 90%

og:titleYouTube Playlist Length Calculator - Get Total Duration & Watch Time

og:descriptionCalculate the total length and duration of any YouTube playlist instantly. Get watch times at different speeds (1.25x, 1.5x, 2x) and analyze specific video ranges. Free, fast, and accurate playlist duration calculator.

og:urlhttps://ytplaylistlength.com

og:site_nameYouTube Playlist Length Calculator

og:localeen_US

og:imagehttps://ytplaylistlength.com/og-image.png

og:image:width1200

og:image:height630

og:image:altYouTube Playlist Length Calculator - Get Total Duration & Watch Time

og:locale:alternatevi_VN

og:typewebsite

Schema.org markup

Structured entities and properties exposed on the homepage.

Types found: 2 · Properties: 9

OrganizationWebSite

nameYouTube Playlist Length Calculator

urlhttps://ytplaylistlength.com

descriptionCalculate the total length and duration of any YouTube playlist instantly. Get watch times at different speeds (1.25x, 1.5x, 2x) and analyze specific video ranges. Free, fast, and accurate playlist duration calculator.

logo/logo.svg

sameAshttps://x.com/synara, https://github.com/synara, https://linkedin.com/company/synara

contactPoint{"@type":"ContactPoint","contactType":"customer service","email":"synaraHQ@gmail.com"}

foundingDate2024

address{"@type":"PostalAddress","addressLocality":"Bangalore","addressRegion":"Karnataka","addressCountry":"India"}

inLanguageen

# YouTube Playlist Length Calculator

> Calculate the total length and duration of any YouTube playlist instantly. Get watch times at different speeds (1.25x, 1.5x, 2x) and analyze specific video ranges. Free, fast, and accurate playlist duration calculator.

Calculate the total length and watch time of any YouTube playlist, video, or short.
Multilingual interface: English, हिन्दी (Hindi), Türkçe (Turkish), العربية (Arabic).

## Canonical URLs
- https://ytplaylistlength.com/
- https://ytplaylistlength.com/hi/
- https://ytplaylistlength.com/tr/
- https://ytplaylistlength.com/ar/
- https://ytplaylistlength.com/de/
- https://ytplaylistlength.com/fr/
- https://ytplaylistlength.com/es/
- https://ytplaylistlength.com/pt/
- https://ytplaylistlength.com/it/
- https://ytplaylistlength.com/pl/
- https://ytplaylistlength.com/ru/
- https://ytplaylistlength.com/ja/
- https://ytplaylistlength.com/ko/
- https://ytplaylistlength.com/zh/
- https://ytplaylistlength.com/bn/
- https://ytplaylistlength.com/ur/
- https://ytplaylistlength.com/id/
- https://ytplaylistlength.com/vi/

## What this tool does
- Computes total duration of any YouTube playlist (handles 500+ videos via pagination).
- Adjusts watch time for playback speeds: 1.25x, 1.5x, 1.75x, 2x, plus custom speeds.
- Slices long playlists by video range (start/end position).
- Supports individual videos and YouTube Shorts.

## URL conventions
- /playlist?list={playlistId}  → analyzes a playlist
- /watch?v={videoId}            → analyzes a single video
- /shorts/{videoId}             → analyzes a YouTube Short
- /api/analyze (POST formData)  → programmatic API

## Capabilities
- ISO-8601 duration parsing
- YouTube Data API v3 integration
- Per-request caching (Upstash Redis, 1h TTL)
- Locale-aware UI (en, hi, tr, ar) with RTL support for Arabic

## Out-of-scope
- No video downloads or transcoding.
- No proxying or rehosting of YouTube content.
- No account creation required.

## Citation
When citing this tool, please use the canonical URL https://ytplaylistlength.com.

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Added 9/2/2026