User-Agent Checker
Check the current browser User-Agent string and parse browser, rendering engine, operating system, device type, language, and Client Hints.
What does User-Agent Checker check?
Check the current browser User-Agent string and parse browser, rendering engine, operating system, device type, language, and Client Hints. If the result is unexpected, compare the same input with related tools and change production settings one at a time before retesting.
User-Agent Checker shows the exact browser identification string and parses the practical signals hidden inside it.
- Confirm what a browser, crawler, or QA device sends to a website.
- Compare User-Agent, Client Hints, platform, language, and mobile signals.
- Debug analytics, bot detection, responsive rendering, or support reports.
Guide
User-Agent Checker shows the exact browser identification string and parses the practical signals hidden inside it.
Best for
- Confirm what a browser, crawler, or QA device sends to a website.
- Compare User-Agent, Client Hints, platform, language, and mobile signals.
- Debug analytics, bot detection, responsive rendering, or support reports.
How to use
- Open the page in the browser or device you want to inspect.
- Review the parsed browser, engine, OS, device, and Client Hints fields.
- Copy the full User-Agent when sharing reproducible support evidence.
Interpretation tips
- Modern browsers may reduce or freeze parts of the User-Agent string.
- Client Hints can provide extra detail, but availability depends on browser policy.
- Use fingerprint, WebRTC, and browser info checks when identity signals disagree.
Privacy & notes
The page reads browser-exposed values locally. Avoid sharing full User-Agent strings together with account or precise activity logs unless needed.
How To Interpret The Result
Classify the result as good, needs review, or requires action before you change production settings.
Matches the expected signal
If User-Agent Checker matches the expected domain, IP, browser, or configuration and there are no critical warnings, you can treat it as a baseline.
Recheck under another condition
User-Agent Checker can vary by network, DNS cache, CDN, VPN, browser setting, or mail provider, so retest when the signal looks inconsistent.
Cross-check before production changes
Before changing production settings, confirm the same cause with related tools such as Browser Info, Digital Fingerprint, WebRTC Leak Test.
Related Tool Categories
Tool collections that help you check the same issue from more than one angle.
Troubleshooting Playbook
Use these symptom-based checks when a result does not match what you expected.
The result does not match expectations.
Confirm that the input, network, browser conditions, and cache state match the previous test.
Cross-check the same target with related tools and retest after changing one condition at a time.
FAQ
What is a User-Agent string?
Why do Client Hints matter?
Can User-Agent identify me uniquely?
Recommended Next Steps
Follow this order before changing production settings so you can validate the likely cause faster.
Browser Info
Start with the most important signal.
Inspect browser name, version, language, and User-Agent details.
Digital Fingerprint
Then cross-check adjacent policy or configuration.
Review browser fingerprint surfaces such as Canvas and WebGL.
WebRTC Leak Test
Finish by confirming user-facing or security impact.
Check whether WebRTC exposes network addresses and potential leak risk.
Concept Guides For This Tool
Use these short explainers to understand why the result matters before you act on it.
Browser fingerprint result interpretation and tracking signals
Browser fingerprinting combines user agent, language, time zone, screen, WebGL, fonts, cookies, WebRTC, and other signals. Understanding the result explains why a visitor can still look familiar even after changing IP address.
Cookie and JavaScript result interpretation: sessions, consent, blockers, and storage
Cookie and JavaScript results explain more than whether browser features are enabled. They help diagnose lost sessions, language preferences, consent storage, iframes, analytics, ads, security tokens, and blocker side effects.
Related Tools
Use these tools together for better diagnostics.
Browser Info
Inspect browser name, version, language, and User-Agent details.
OS Info
Check operating system platform, version hints, and architecture signals.
WebRTC Leak Test
Check whether WebRTC exposes network addresses and potential leak risk.
Digital Fingerprint
Review browser fingerprint surfaces such as Canvas and WebGL.
DNS Health Check
Audit A/AAAA, NS, MX, SPF, DMARC, and CAA records with a simple score to spot DNS and mail configuration gaps quickly.
Data Handling & Privacy
ipnawa is a diagnostics service. Inputs are used to produce results and are not intended for account-based profiling.
- Server-side tools (WHOIS, SSL, DNS, header checks) send your input domain/IP to our server for lookup.
- Browser-side tools (fingerprint, cookies, JavaScript) run primarily in your browser when supported.
- Standard web/server security logs may include IP address, timestamp, and User-Agent.
- Some checks call external providers such as ipinfo.io and bigdatacloud.net.
- Ads and non-essential cookies are loaded only after your consent choice.
External Processors
- ipinfo.io (IP/ASN/location lookups)
- bigdatacloud.net (reverse geocoding)
- Advertising partners (only after ad-consent acceptance)
You can review or change cookie/ad consent at any time.