Frequently Asked Questions
Everything you might want to know about nere.nu.
About the Service
What is nere.nu?
nere.nu is a free website status checker that helps you determine whether a site is down for everyone or just for you. You enter a domain, and we tell you immediately whether it's up, down, or experiencing issues.
How does nere.nu check if a website is down?
We use multiple methods in parallel:
- Server-side check: Our servers send HTTP/HTTPS requests to the domain and analyze the response
- Browser-side check: Your browser also tries to connect directly, testing your own connection
- Crowd data: We aggregate anonymous reports from other visitors
By combining these, we can distinguish between "the site is actually down" and "only you can't reach it."
Is nere.nu free?
Yes. Everything on nere.nu is free for personal use. No account required, no credit card, no trial periods. We're funded by unobtrusive, privacy-respecting advertising.
Do I need to create an account?
No. All core features work without an account. Creating a free account only adds convenience — you can save watched sites, manage alerts across devices, and see your history.
What languages is nere.nu available in?
We support 11 languages: English, Swedish, Spanish, French, Italian, Portuguese, German, Norwegian, Danish, Icelandic, and Finnish. Change language via the flag menu in the top right.
Checking a Site
How fast is a check?
Most checks complete in under 2 seconds. If a site is slow or unresponsive, we wait up to 8 seconds before timing out.
The site works for me but nere.nu says it's down. Why?
Possible reasons:
- The site is blocking our monitoring IP (some sites block datacenter IPs)
- The site has geographic restrictions
- Intermittent issues that resolved in the second between our check and yours
- Your ISP has a different route than our servers
Click "Check Now" again to run a fresh check.
Why does it show "Down" for a site that's clearly working?
Some sites serve 5xx errors or timeouts to automated checkers. We recently improved our logic to detect CDN challenge pages (like Cloudflare's "Just a moment"), but some edge cases remain. If you see this, please let us know.
Can I check a private or internal site (like intranets)?
No. We block requests to private IP ranges (10.x, 172.16-31.x, 192.168.x, 127.x) and internal hostnames as a security measure (SSRF protection).
Do you check HTTP or HTTPS?
We try HTTPS first, then fall back to HTTP if HTTPS fails. This handles sites like elasticbeanstalk.com that only respond on HTTP and redirect to HTTPS elsewhere.
What does "RECOVERED" mean?
It means the site was down in our most recent check, but that check is more than 15 minutes old. The site has likely recovered since. To confirm, click the site to run a fresh check.
Notifications & Alerts
How do "notify when back up" alerts work?
When a site is down, you can subscribe by email or push notification. As soon as our monitoring detects the site is back up, we send you exactly one notification, then delete your subscription. No spam, no recurring messages.
How often do you check a down site for recovery?
Every 2 minutes when the site is actively being watched by alerts. Between 5 and 30 minutes for normal monitoring.
Can I subscribe to alerts without an account?
Yes. Email alerts just need a valid email address. Push notifications use your browser's built-in subscription — no account or cookie required.
Will you send me promotional emails?
No. We only send transactional emails — account verification, password reset, and the specific alert you subscribed to. No marketing, ever.
Privacy & Data
Do you track me?
Minimally. We don't use advertising cookies, don't sell your data, and don't build behavioral profiles. We run self-hosted analytics (Matomo) in cookie-less mode — just aggregated page views, no individual tracking.
Do you log my IP address?
We hash your IP address with SHA-256 before storing it — we never store raw IP addresses. The hash is used for rate limiting and to prevent vote manipulation, but it can't be reversed to find your real IP.
How long do you keep my data?
Status check records: 30 days. Account data: until you delete your account. Alert subscriptions: deleted immediately after the alert fires. See our Privacy Policy for details.
How can I delete my account or data?
Email us at [email protected]. We respond within 30 days as required by GDPR.
Technical Questions
What does "HTTP 502 Bad Gateway" mean?
A proxy or load balancer received an invalid response from the backend server. Usually indicates the application has crashed behind the web server. Troubleshooting tips.
What does "HTTP 503 Service Unavailable" mean?
The server is temporarily unable to handle the request. It might be overloaded, undergoing maintenance, or having application pool issues. Usually resolves within minutes.
Why does my browser say "DNS_PROBE_FINISHED_NXDOMAIN"?
Your DNS resolver can't find the domain. Either the domain doesn't exist, has expired, or your DNS is misconfigured. Try flushing your DNS cache or switching to 1.1.1.1.
What's the difference between HTTP and HTTPS?
HTTP is unencrypted. HTTPS adds encryption (TLS/SSL). Modern browsers flag HTTP sites as "Not secure." All reputable sites use HTTPS today.
What's a CDN?
Content Delivery Network. A network of servers worldwide that caches a website's content close to users, making the site load faster. Major CDNs: Cloudflare, Akamai, Fastly, AWS CloudFront. See our glossary.
Can I use nere.nu as a monitoring service for my own site?
For casual use, sure — just visit the status page for your site and subscribe to alerts. For mission-critical monitoring, use a commercial service with SLAs (UptimeRobot, Pingdom, Better Stack, etc.).
Troubleshooting
How do I check if it's my internet or the website?
Try these steps:
- Visit nere.nu from a different network (mobile data, for example)
- Check another unrelated site — if that works too, the issue is the site you were trying to reach
- Run a speed test at speedtest.net
- Restart your router
What should I do if a site has been down for hours?
If a site has been down for an extended period, check the company's social media (Twitter/X, Mastodon) for updates. Subscribe to nere.nu alerts to be notified when it's back. If it's a service you pay for, contact their support.
The site redirects somewhere else. Is that normal?
Often, yes. Many companies consolidate domains — for example, elasticbeanstalk.com redirects to aws.amazon.com. When we detect this, we show a note linking to the new location's status page.
Business & Contact
Who operates nere.nu?
nere.nu is operated by Global Vantage AB, a Swedish company.
How do I contact you?
Email: [email protected]. We respond within a few business days.
Can I advertise on nere.nu?
We display ads through automated networks. For direct advertising inquiries or partnerships, email [email protected].
I found a bug. How do I report it?
Email us at [email protected] with details: what you did, what happened, what you expected, and which browser/OS you're using. Screenshots help!