Quest Diagnostics status
Quest Diagnostics uptime & performance at a glance
- Current status
- Operational
- Uptime · 24h
- 100%
- Uptime · 7 days
- 100%
- Uptime · 30 days
- 100%
- Response time
- 194 ms
- Tracked incidents
- 0
- SSL certificate
- —
Is Quest Diagnostics down, or is it just you?
Multiple independent check rounds from rimetry's monitoring infrastructure, run seconds apart.
Our checks reached Quest Diagnostics successfully in every round of the last check cycle.
| Check round | Last check | Success rate (24h) | Avg response |
|---|---|---|---|
| Round 1 | Reachable | 100% | 1,338 ms |
| Round 2 | Reachable | 100% | 1,279 ms |
| Round 3 | Reachable | 100% | 1,141 ms |
| Round 4 | Reachable | 100% | 1,168 ms |
Based on 364 automated checks in the last 24 hours. Each round is an independent pass over the same endpoint, seconds apart — a single failing round is not an outage; repeated failures across rounds are.
What can be affected on Quest Diagnostics?
These are the main Quest Diagnostics functions that can experience separate issues.
- Login & authenticationTest signing in from a private browser window or another device
- AppointmentsCall the provider directly if a booking is time-critical
- Records & resultsRecords may load slowly during maintenance windows
- Mobile appForce-close and reopen the app, then retry on mobile data
- Account & settingsCheck account settings from the website if the app looks wrong
This list shows which parts can fail on their own. It does not mean any of them is failing right now — the live status above is the only claim we make about the current state.
Incident timeline
No incidents reported. Everything is green.
Quest Diagnostics appears stable across all monitored regions. Community reports in the last hour are within normal noise levels.
Monitoring live signals…
No disruptions detected
No regional issues yet
About Quest Diagnostics
Quest Diagnostics provides medical laboratory services and diagnostic information for healthcare providers and patients. People access the MyQuest portal to schedule blood draws, view clinical lab results, and manage personal health records. When the system experiences downtime, users typically encounter errors during the appointment booking process or find that their historical lab reports fail to load. Physicians may also lose access to the digital results delivery system. Rimetry verifies the status of these health portals by monitoring their uptime and response speeds from several global geographic points to ensure patients can access their data.
Problems with Quest Diagnostics can affect login & authentication, appointments, records & results independently.
Quest Diagnostics (questdiagnostics.com) is a healthcare service monitored continuously by rimetry's automated checks. We probe its public endpoints every 60 seconds in repeated independent rounds to detect outages and latency spikes the moment they happen.
Right now Quest Diagnostics is reporting as operational across our probes, with an average response time of 194 ms and 100.00% uptime over the last 24 hours. Most users connecting to questdiagnostics.com are seeing it work normally.
Common causes of disruption for services like Quest Diagnostics include backend API failures, region-specific routing problems at the CDN or ISP layer, expired TLS certificates, DNS misconfigurations, and capacity spikes during major events. rimetry combines automated probes, vendor status feeds, and verified community reports to give you a single high-confidence answer instead of guessing.
Paste this anywhere — your site, docs, README — and visitors see the live rimetry health for this service.
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Other healthcare tools people watch alongside Quest Diagnostics. See the full category.
What is Quest Diagnostics?
Lab testing and diagnostic results.
Quest Diagnostics is part of our Healthcare category. You can also review current trending outages across the internet.
Common issues
- · Portal login failures
- · Results or records not loading
- · Appointment booking errors
- · Prescription requests not submitting
Similar patterns often surface across other healthcare providers — cross-check against the global outage map.
Troubleshooting
- · Test signing in from a private browser window or another device
- · Call the provider directly if a booking is time-critical
- · Records may load slowly during maintenance windows
- · Force-close and reopen the app, then retry on mobile data
- · For anything urgent, contact your provider by phone rather than waiting on the portal
- · Try the web portal if the app fails to load records
- · Confirm your identity-verification step completed
- · Clear cookies if you're stuck in a login redirect
- · Check whether only one section (results, messaging) is affected
- · Check Quest Diagnostics's official social channels
Not sure whether it's you or the service? Run a live speed test, check what your IP looks like from the edge, or watch for regional trouble on the worldwide outage map. For the wider picture, browse recent incidents or filter down to healthcare.
FAQ
- Is Quest Diagnostics down for everyone?
Use the live status above — green means it's likely just you. - How often is the status updated?
Every minute from four global regions. - Is Quest Diagnostics Login & authentication down?
Login & authentication can fail on its own, separately from the rest of Quest Diagnostics. Compare the live status above with your own test of that specific function. - Where can I see past Quest Diagnostics incidents?
Every event we've recorded lives in the live incident feed, and older ones are grouped in the monthly incident archive. - What else is broken right now?
See the trending outages page or narrow it to healthcare.