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    engineering deep-dives, site updates, and the “how” behind the tools we build.

    Technology Fingerprinting Explained for Developers
    Abhay KhantJul 18, 2026Toolsura Blog

    Technology Fingerprinting Explained for Developers

    Technology fingerprinting explained: the headers, cookies, and DNS records that reveal a stack, with WordPress on 40.7% of all websites (W3Techs, 2026).

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    Best AI Coding Assistants in 2026: Which One for Which Job
    Abhay KhantAug 21, 2026Toolsura Blog

    Best AI Coding Assistants in 2026: Which One for Which Job

    Claude Code leads 2026 adoption at 39%. Our comparison covers pricing, the OpenCode open-source route, and which assistant fits which job.

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    CSS Radial Gradient: Complete Guide with Examples
    Abhay KhantAug 6, 2026Toolsura Blog

    CSS Radial Gradient: Complete Guide with Examples

    A CSS radial gradient fades color outward from a center point. Learn shape, all 4 size keywords, and center positioning with copyable examples.

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    Troubleshooting gsc-indexer: 403, 401, and other errors
    Abhay KhantJul 19, 2026Toolsura Blog

    Troubleshooting gsc-indexer: 403, 401, and other errors

    Fix every gsc-indexer error: 403, 401, 429/5xx, sitemap fetch failures, 'no URLs given', and the 'unexpected argument' flag-order trap.

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    gsc-indexer FAQ
    Abhay KhantJul 19, 2026Toolsura Blog

    gsc-indexer FAQ

    gsc-indexer FAQ: does it index instantly, why www vs non-www matters, API key vs service account, 403 causes, and how many URLs you can process.

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    Indexing many URLs: batch, stdin, arguments, and sitemaps
    Abhay KhantJul 19, 2026Toolsura Blog

    Indexing many URLs: batch, stdin, arguments, and sitemaps

    Submit URLs to Google in bulk: batch files, stdin pipes, positional arguments, and sitemap expansion, capped at 50,000 URLs per run.

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    What Are Passkeys? The Passwordless Login Standard Explained
    Abhay KhantJul 18, 2026Toolsura Blog

    What Are Passkeys? The Passwordless Login Standard Explained

    Passkeys are the passwordless, phishing-resistant login standard replacing passwords. Learn how they work and how they compare to 2FA.

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    Step 1: Create and verify a Google Search Console property
    Abhay KhantJul 19, 2026Toolsura Blog

    Step 1: Create and verify a Google Search Console property

    Create and verify a Google Search Console property (URL-prefix or Domain) so gsc-indexer can inspect your URLs without 403 errors.

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    CSS Gradient Border: Workarounds and Modern Solutions
    Abhay KhantAug 6, 2026Toolsura Blog

    CSS Gradient Border: Workarounds and Modern Solutions

    A CSS gradient border needs a workaround: border-color takes only solid colors. Compare border-image, background-clip, and CSS mask, at 98%+ browser support.

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    CSS Gradient Performance: Rendering and Optimization
    Abhay KhantAug 6, 2026Toolsura Blog

    CSS Gradient Performance: Rendering and Optimization

    CSS gradient performance is a non-issue when static. Cost shows up on animation and huge repainted areas. Learn to profile and optimize gradients.

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    Why we bother
    to write.

    I started ToolSura because I was tired of tools that felt like they were trying to steal my data or drown me in ads. This blog isn’t just “content marketing”—it’s where we document how we’re solving those problems.

    When I build a new tool, like the 3D Color Cube or the Base64 Transcoder, I keep thinking about the developers who need things to just *work* without the fluff. We write about our architecture, our performance optimizations, and our failures because we think the “how” is just as important as the tool itself.

    01.

    Privacy First

    We don’t just say “private.” We build zero-knowledge architectures that ensure your data stays in your browser’s V8 sandbox.

    02.

    Speed Obsessed

    No unnecessary API calls. No server latency. We optimize for the metal, leveraging local processing for instant results.

    03.

    Pure Utility

    ToolSura is a protest against “Software as a Service” bloat. These are tools, not subscriptions. We write to keep ourselves honest about that mission.

    ToolSuraPrivacy-First Tools

    Free utilities that run in your browser. No trackers, no accounts, no uploads.

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    © 2026 ToolSura. Free tools that run in your browser.

    Remote-First / Based in India

    Technical Manifesto

    Private • Client-Side • No Uploads

    ToolSura on Nick Launches
    Browser-Native
    Privacy-First