TTFB Checker
Measure Time to First Byte (TTFB) for any page using the Navigation Timing API. Enter custom values to check ratings and get server optimization tips.
This Page's TTFB
Measured using the browser's Navigation Timing API.
Manual TTFB Checker
Enter a TTFB value from PageSpeed Insights or WebPageTest to check its rating.
Tips to Improve TTFB
A Content Delivery Network caches responses at edge locations near users, dramatically reducing geographic latency and TTFB.
Cache rendered HTML or API responses with Redis, Varnish, or built-in frameworks caches so the server returns content without recomputing it.
Slow queries are the #1 cause of high TTFB. Add indexes, use query caching, and profile slow queries with EXPLAIN.
Profile your server-side code to find bottlenecks. Consider moving expensive work to background jobs.
Modern protocols multiplex requests and support header compression, reducing connection overhead significantly.
Shared hosting often has high TTFB due to resource contention. Moving to dedicated or VPS hosting can reduce TTFB by 2–5x.
Frequently Asked Questions
What is TTFB?
TTFB (Time to First Byte) measures the time from a browser requesting a page to when it receives the first byte of response. Good TTFB is under 800ms.
How do I reduce TTFB?
Use a CDN, enable server-side caching, optimize database queries, reduce server processing time, and upgrade to HTTP/2 or HTTP/3.
Does TTFB affect SEO?
Yes. TTFB is part of the Largest Contentful Paint (LCP) measurement, which is a Core Web Vital. High TTFB directly delays LCP and can hurt search rankings.
Is the TTFB Checker free to use?
Yes, the TTFB Checker is 100% free with no registration, no hidden fees, and no usage limits. All processing happens locally in your browser, ensuring complete privacy.
Is my data safe with this tool?
Absolutely. The TTFB Checker processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the TTFB Checker work on mobile devices?
Yes, the TTFB Checker is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the TTFB Checker in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
Does this tool follow Google's latest guidelines?
Yes, the TTFB Checker is built following current Google Search guidelines and best practices. We regularly update the tool to reflect changes in search engine requirements.
Which browsers are supported?
The TTFB Checker works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
Related Tools
Free Meta Tag Generator
Generate SEO-friendly meta tags for your website. Title, description, keywords, and more. Free, fast, and works entirely in your browser with no sign-up required.
Free Open Graph Tag Generator
Create Open Graph and Twitter Card meta tags for social media sharing. Free, fast, and works entirely in your browser with no sign-up required.
Free Robots.txt Generator
Generate a robots.txt file to control search engine crawling. Free, fast, and works entirely in your browser with no sign-up required.
Free Keyword Density Checker
Analyze keyword density and frequency in your content for SEO optimization. Free, fast, and works entirely in your browser with no sign-up required.
About TTFB Checker
TTFB Checker is a free, browser-based tool in our SEO Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.