// dns · ns
ycombinator.com NS Lookup
Use this NS lookup tool to find the authoritative nameservers for ycombinator.com. NS records indicate which DNS servers respond to all queries for ycombinator.com, including A records, MX records, TXT records, and every other record type.
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What Are ycombinator.com's Nameservers?
NS (Name Server) records for ycombinator.com identify the DNS servers that hold the authoritative DNS zone for this domain. When a recursive resolver needs to look up any record for ycombinator.com: whether an IP address, mail server, or TXT record. It contacts these nameservers to get the definitive answer.
Every domain must have at least two nameservers for redundancy. If one nameserver for ycombinator.com goes offline, the remaining nameservers continue answering queries so the domain stays reachable. Most DNS providers assign multiple nameservers spread across different networks and geographic locations.
The nameservers for ycombinator.com are set at the domain registrar and are part of the delegation chain that makes DNS work. Changing these nameservers is how you switch ycombinator.com's DNS hosting from one provider to another.
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How DNS Delegation Works
NS records create the hierarchical delegation chain that makes DNS work. The root DNS servers delegate to TLD servers (e.g., .com servers), which delegate to ycombinator.com's authoritative nameservers via NS records. Each level points to the next, allowing any device on the internet to resolve ycombinator.com to its IP address.
When you update nameservers at your registrar for ycombinator.com, you're changing the delegation at the TLD level. This tells the .com (or other TLD) servers to direct queries for ycombinator.com to a new set of nameservers. This change can take up to 48 hours to fully propagate due to DNS caching.
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Who Hosts DNS for ycombinator.com?
An NS lookup reveals ycombinator.com's DNS provider from its nameserver hostnames. Cloudflare uses *.ns.cloudflare.com, AWS Route 53 uses *.awsdns-*.com, Google Cloud DNS uses ns-cloud-*.googledomains.com, DigitalOcean uses ns*.digitalocean.com, and many registrars like GoDaddy, Namecheap, and Google Domains provide their own nameservers.
Knowing the DNS provider for ycombinator.com is useful for troubleshooting resolution issues, understanding the domain's infrastructure, or evaluating the reliability of its DNS hosting. Enterprise-grade DNS providers like Cloudflare and Route 53 offer features like DDoS protection, anycast routing, and sub-second propagation.
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Why Nameserver Redundancy Matters
If all nameservers for ycombinator.com become unreachable, the domain effectively disappears from the internet: websites won't load, email won't deliver, and all services depending on DNS will fail. This is why every domain should have nameservers on at least two separate networks.
Major DNS outages like the 2016 Dyn attack demonstrated what happens when nameserver infrastructure fails. Modern DNS providers mitigate this with anycast routing, where the same nameserver addresses are served from dozens of data centers worldwide. ycombinator.com's nameservers indicate how many are configured.
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Frequently Asked Questions
Who hosts DNS for ycombinator.com?, ycombinator.com's nameservers reveal its DNS hosting provider. Look at the nameserver hostnames to identify the provider (e.g., cloudflare.com, awsdns, etc.).
How many nameservers does ycombinator.com have?, The number of NS records indicates how many nameservers serve ycombinator.com. Most domains have 2: 4 nameservers for redundancy and performance.
What DNS provider does ycombinator.com use?, The nameserver hostnames identify the provider. Compare them against known DNS provider naming patterns to determine who manages DNS for ycombinator.com.
How do I change nameservers for a domain?, Nameserver changes are made at the domain registrar (not the DNS provider). Log into your registrar account, find the nameserver settings, and update them to the new provider's nameservers. Propagation takes up to 48 hours.