Guides

Practical web and SEO utilities

A compact workflow for robots.txt, sitemaps, favicons, URL parsing, and social previews.

Treat crawl readiness as a workflow

Robots.txt, sitemap XML, canonical URLs, meta tags, Open Graph previews, and favicons should describe the same public site structure. Fix reachability and duplication before changing titles or descriptions.

Robots rules should not block pages listed in the sitemap.
Sitemap URLs should be final canonical URLs.
Meta tags should match visible page content.

Validate public URLs before generating files

A sitemap or robots file made from broken URLs can look syntactically valid while sending crawlers to redirects, private hosts, or duplicate pages. Use URL Parser and HTTP Status Checker before copying crawl files.

Reject localhost and private-host entries for public crawl files.
Prefer HTTPS canonical URLs.
Check apex and www redirect behavior separately.

Keep social preview data inspectable

Open Graph title, description, URL, and image fields should help users recognize the page when it is shared. Broken image hosts, mismatched canonical URLs, and generic descriptions make the preview look unfinished.

Use public HTTPS image URLs.
Keep preview text specific to the page task.
Check image dimensions and file format before launch.

Use favicons as part of trust, not decoration

A favicon helps users recognize a tab, bookmark, and browser history entry. It should be lightweight, stable, and aligned with the site identity rather than generated as a one-off experiment on every page.

Keep favicon markup simple and cache-friendly.
Use consistent foreground and background colors.
Check visibility in light and dark browser chrome.

Document the review result

A crawl-readiness pass should end with concrete evidence: final 200 URLs, sitemap coverage, robots intent, canonical host behavior, and preview readiness. That evidence is stronger than broad SEO claims.

Save the canonical URL list used for checking.
Record status codes and redirect chains.
Keep visible page content aligned with metadata.

Before copying

A short review loop for safer reuse

1. Robots.txt GeneratorGenerate robots.txt rules with sitemap controls and a copyable crawl report.SEONext step: Create crawl directives and a crawl policy report for a public site.Compare the output against the original input before copying.2. Sitemap GeneratorGenerate XML sitemap entries and a copyable search discovery report from public URLs.SEONext step: Turn a canonical URL list into sitemap XML plus a discovery submission report.Compare the output against the original input before copying.3. Open Graph PreviewPreview Open Graph title, description, URL, image, robots policy, and a copyable crawler report.SEONext step: Preview how a shared page card might read and copy a crawler QA report.Compare the output against the original input before copying.4. Favicon GeneratorGenerate a simple SVG favicon and HTML link tags from text and colors.SEONext step: Create a lightweight SVG favicon for prototypes.Compare the output against the original input before copying.

Robots.txt Generator

Generate robots.txt rules with sitemap controls and a copyable crawl report.

SEO

Use cases

Create crawl directives and a crawl policy report for a public site.
Robots.txt Generator for seo workflows

Common failure cases

Robots.txt Generator can still fail when the pasted input shape differs from Allow all with sitemap.
The output should be reviewed in the target seo workflow before reuse.
Browser-local processing does not make sensitive production data safe to paste.

Before copying

Compare the output against the original input before copying.
Remove secrets, customer data, and one-off environment values.
Continue with sitemap-generator if the result needs another validation step.

Examples

Common input

Create crawl directives and a crawl policy report for a public site.

Allow all with sitemap

Typical output

Use this as a quick sanity check before copying results.

robots.txt plus sitemap host, directive count, warnings, and crawl checklist.

Public sitemap

Creates a crawl-friendly default and copyable crawl report for an indexable public site.

User-agent: *
Allow: /
Sitemap: https://www.bobob.app/sitemap.xml

FAQ

Does Robots.txt Generator upload my input?

No. This tool runs in your browser unless the privacy badge explicitly says a server route is required.

Can I use this for production secrets?

Avoid pasting sensitive production data into any website. Prefer local test data or redacted payloads.

Can robots.txt force indexing?

No. It controls crawl instructions. Pages still need reachable URLs, useful visible content, metadata, and internal links.

Sitemap Generator

Generate XML sitemap entries and a copyable search discovery report from public URLs.

SEO

Use cases

Turn a canonical URL list into sitemap XML plus a discovery submission report.
Sitemap Generator for seo workflows

Common failure cases

Sitemap Generator can still fail when the pasted input shape differs from https://www.bobob.app/ https://www.bobob.app/tools/json-formatter.
The output should be reviewed in the target seo workflow before reuse.
Browser-local processing does not make sensitive production data safe to paste.

Before copying

Compare the output against the original input before copying.
Remove secrets, customer data, and one-off environment values.
Continue with robots-txt-generator if the result needs another validation step.

Examples

Common input

Turn a canonical URL list into sitemap XML plus a discovery submission report.

https://www.bobob.app/
https://www.bobob.app/tools/json-formatter

Typical output

Use this as a quick sanity check before copying results.

XML sitemap plus host, HTTPS, duplicate, canonical, and submission checklist notes.

Canonical tool URLs

Builds XML entries and a submission report from final public URLs only.

https://www.bobob.app/tools
https://www.bobob.app/tools/json-formatter

FAQ

Does Sitemap Generator upload my input?

No. This tool runs in your browser unless the privacy badge explicitly says a server route is required.

Can I use this for production secrets?

Avoid pasting sensitive production data into any website. Prefer local test data or redacted payloads.

Should sitemap URLs redirect?

Prefer final canonical URLs that return 200. Avoid listing URLs that immediately redirect or point at private/local hosts.

Open Graph Preview

Preview Open Graph title, description, URL, image, robots policy, and a copyable crawler report.

SEO

Use cases

Preview how a shared page card might read and copy a crawler QA report.
Open Graph Preview for seo workflows

Common failure cases

Open Graph Preview can still fail when the pasted input shape differs from Title, description, image URL.
The output should be reviewed in the target seo workflow before reuse.
Browser-local processing does not make sensitive production data safe to paste.

Before copying

Compare the output against the original input before copying.
Remove secrets, customer data, and one-off environment values.
Continue with meta-tag-generator if the result needs another validation step.

Examples

Common input

Preview how a shared page card might read and copy a crawler QA report.

Title, description, image URL

Typical output

Use this as a quick sanity check before copying results.

Card preview, robots policy, image diagnostics, and Open Graph tags

Guide preview

Reviews whether a guide link looks complete when shared and copies the crawler follow-up report.

Title, description, image URL, canonical URL

FAQ

Does Open Graph Preview upload my input?

No. This tool runs in your browser unless the privacy badge explicitly says a server route is required.

Can I use this for production secrets?

Avoid pasting sensitive production data into any website. Prefer local test data or redacted payloads.

Why does a social preview differ from the page?

Platforms cache previews, rewrite snippets, and require public image URLs, so regenerate after changing tags and allow cache refresh time.

Favicon Generator

Generate a simple SVG favicon and HTML link tags from text and colors.

SEO

Use cases

Create a lightweight SVG favicon for prototypes.
Favicon Generator for seo workflows

Common failure cases

Favicon Generator can still fail when the pasted input shape differs from B on #18181b.
The output should be reviewed in the target seo workflow before reuse.
Browser-local processing does not make sensitive production data safe to paste.

Before copying

Compare the output against the original input before copying.
Remove secrets, customer data, and one-off environment values.
Continue with color-converter if the result needs another validation step.

Examples

Common input

Create a lightweight SVG favicon for prototypes.

B on #18181b

Typical output

Use this as a quick sanity check before copying results.

<link rel="icon" href="data:image/svg+xml,..." />

FAQ

Does Favicon Generator upload my input?

No. This tool runs in your browser unless the privacy badge explicitly says a server route is required.

Can I use this for production secrets?

Avoid pasting sensitive production data into any website. Prefer local test data or redacted payloads.

Related tools

Open the utility connected to this guide.

Robots.txt GeneratorGenerate robots.txt rules with sitemap controls and a copyable crawl report.Create crawl directives and a crawl policy report for a public site. · Robots.txt Generator for seo workflowsCreate crawl directives and a crawl policy report for a public site.No. This tool runs in your browser unless the privacy badge explicitly says a server route is required.Sitemap GeneratorGenerate XML sitemap entries and a copyable search discovery report from public URLs.Turn a canonical URL list into sitemap XML plus a discovery submission report. · Sitemap Generator for seo workflowsTurn a canonical URL list into sitemap XML plus a discovery submission report.No. This tool runs in your browser unless the privacy badge explicitly says a server route is required.Open Graph PreviewPreview Open Graph title, description, URL, image, robots policy, and a copyable crawler report.Preview how a shared page card might read and copy a crawler QA report. · Open Graph Preview for seo workflowsPreview how a shared page card might read and copy a crawler QA report.No. This tool runs in your browser unless the privacy badge explicitly says a server route is required.Favicon GeneratorGenerate a simple SVG favicon and HTML link tags from text and colors.Create a lightweight SVG favicon for prototypes. · Favicon Generator for seo workflowsCreate a lightweight SVG favicon for prototypes.No. This tool runs in your browser unless the privacy badge explicitly says a server route is required.