Browser-only utility

Meta Tag Analyzer, private by default

Review the SEO and sharing metadata from a page source snippet without asking tempboxs to fetch the URL or upload pasted HTML.

Analyze pasted page HTML

Paste the head section or full HTML from a page to review SEO, social, and structured-data signals without fetching the URL from tempboxs servers.

Meta summary
Waiting
Title

Waiting

Description

Waiting

Canonical

Waiting

Robots

Not set

Viewport

Waiting

Language

Not set

Meta tags

0

Link tags

0

H1 tags

0

JSON-LD types

0

HTML is parsed locally in your browser. This analyzer does not fetch the page URL and does not upload pasted source to tempboxs.

How to use meta analyzer safely

What meta tags help crawlers understand

Metadata gives browsers, search engines, social platforms, and AI crawlers a compact summary of a page. The title, description, canonical URL, robots directive, viewport, language attribute, Open Graph tags, and structured data all play different roles.

Good metadata does not replace useful page content, but it makes the page easier to classify, preview, index, and cite accurately.

What this analyzer checks

Paste the page source, a head section, or copied HTML and the analyzer extracts common SEO and sharing signals. It highlights missing or unusually short/long title and description values, missing canonical or viewport tags, noindex robots directives, Open Graph coverage, JSON-LD types, and H1 count.

The analyzer does not visit the URL, render JavaScript, check live HTTP status, or prove that a crawler can access the page. It reviews the HTML text you provide.

  • Title and description presence and practical length
  • Canonical, robots, viewport, charset, and language signals
  • Open Graph and Twitter social preview tags
  • JSON-LD types and invalid JSON-LD detection
  • H1 count as a basic content-structure clue

Practical publishing workflow

Use the analyzer before publishing a new guide, tool page, or landing page. Copy the page source from your browser or framework output, paste it into the analyzer, then fix missing metadata in your codebase.

For important pages, combine this local check with Search Console, live URL inspection, structured data testing, and real social preview tools after the page is deployed.

Why people use this tool

Page HTML is parsed locally in your browser. tempboxs does not fetch the URL or receive pasted source.

Check core SEO tags

Review title, description, canonical, robots, viewport, language, H1 count, and basic length signals.

Inspect social metadata

See whether Open Graph and Twitter tags are present before sharing a page in feeds, chats, or previews.

Keep source local

Paste a head section or full HTML document and analyze it in the browser without server-side fetching.

Guides from the blog

Learn more about privacy, tracking, passwords, and safer signups.

AdSense Checklist

Review content quality, policy pages, ad placement, crawlability, and technical files before AdSense checks.

ads.txt Checker

Generate a Google AdSense ads.txt line and check pasted authorized-seller records locally before publishing.

UUID Generator

Generate random UUID v4 identifiers in your browser, copy one value, or create a small batch for testing.

Timestamp Converter

Convert Unix timestamps, milliseconds, ISO dates, and local-readable times locally in your browser.

Schema Generator

Generate JSON-LD schema markup for articles, FAQ pages, web pages, and browser tools locally before publishing.

OG Preview

Draft Open Graph and Twitter card preview tags locally for articles, tools, landing pages, and social shares.

llms.txt Generator

Generate an llms.txt draft for AI discovery with public pages, useful tools, safety notes, and crawling guidance.

Sitemap Generator

Generate sitemap XML from public URLs and check duplicate or invalid entries locally before publishing.

Robots Tester

Paste robots.txt rules to test whether a URL path appears allowed or blocked for Googlebot, Bingbot, or another crawler locally in your browser.

JWT Decoder

Decode JWT headers and payloads locally in your browser, inspect claims, and learn what still needs verification.

Strength Checker

Check password length, character variety, common patterns, and estimated guess resistance locally in your browser.

Pixel Checker

Paste email HTML to find likely tracking pixels, remote images, and marketing links locally in your browser.

YAML to JSON

Convert common YAML snippets into formatted JSON locally in your browser for configs, docs, and API examples.

User Agent Parser

Parse browser, operating system, device, engine, and bot hints from user agent strings locally in your browser.

Header Analyzer

Paste raw email headers to inspect sender fields, authentication results, and delivery hops locally in your browser.

URL Parser

Parse a URL into protocol, origin, hostname, port, path, query parameters, hash, and decoded components locally in your browser.

URL Encoder

Encode URL text into percent-escaped values or decode encoded URLs locally in your browser.

URL Cleaner

Clean tracking parameters from links, decode common redirect URLs, and inspect domains locally in your browser.

DNS Records

Look up common DNS record types, purposes, examples, and setup notes locally in your browser.

UTM Builder

Build campaign URLs with UTM source, medium, campaign, term, and content parameters locally in your browser.

JSON Formatter

Format, minify, and validate JSON locally in your browser with clear error feedback.

HTML Entities

Encode HTML-sensitive characters or decode named and numeric entities locally in your browser for docs, blog posts, comments, and support replies.

Regex Tester

Test JavaScript regular expressions, flags, matches, indexes, and capture groups locally in your browser.

MIME Types

Look up common file extensions, MIME types, categories, and delivery notes locally in your browser.

Markdown Previewer

Preview Markdown headings, lists, links, inline styles, and code blocks locally in your browser before publishing docs or guides.

Privacy Checklist

Generate a browser-only privacy checklist for signups, support tickets, link sharing, and publishing workflows.

Word Counter

Count words, characters, sentences, paragraphs, reading time, speaking time, and repeated terms locally in your browser.

Contrast Checker

Check foreground and background hex colors against common WCAG contrast thresholds locally in your browser.

Cron Explainer

Explain five-field cron expressions locally in your browser with readable field meanings and schedule warnings.

CSS Units

Convert CSS px, rem, em, and percent values locally in your browser with adjustable root and parent font sizes.

CSV to JSON

Convert CSV or tabular spreadsheet exports into formatted JSON locally in your browser with header and delimiter controls.

Case Converter

Convert text into lowercase, uppercase, title case, sentence case, slug, snake_case, kebab-case, camelCase, and PascalCase locally in your browser.

HTTP Status Codes

Look up common HTTP status codes, meanings, categories, and troubleshooting notes locally in your browser.

Base64 Converter

Encode plain text to Base64 or decode Base64 back to UTF-8 text locally in your browser.

Hash Generator

Generate SHA-256, SHA-384, and SHA-512 hashes for text or local files without uploading them.

FAQ

No. It only parses HTML you paste into the browser. tempboxs does not fetch a URL or receive pasted source.

No. Metadata helps with clarity and previews, but rankings depend on usefulness, crawlability, technical quality, links, and many other signals.

Open Graph tags improve link previews in social feeds, messaging apps, and many content tools, which can affect how people understand and share a page.

Not every page needs structured data, but important tools, guides, products, organizations, FAQs, and breadcrumbs often benefit from valid JSON-LD when it matches visible content.