Keep Your Site Live During DNS Changes

When you update your website’s DNS (maybe because you’re switching hosting providers, moving to a better server, or updating your nameservers), you expect things to just work

But then, you get messages from customers saying they can’t reach your site. Some see the old version, some see the new one, and a few can’t see anything at all.

This frustrating limbo is caused by DNS propagation – the period it takes for DNS changes to make their way across the internet. While it’s a normal part of managing a website, propagation delays can cause lost sales, confused visitors, and even email disruptions.

Thankfully, with the right planning (and the right hosting partner!), you can keep your site accessible during DNS updates and minimize downtime. 

We’ll break down what DNS propagation is, what affects it, how to prepare for it, and how BigScoots’ Managed Hosting for WordPress – backed by Cloudflare Enterprise integration – can help you speed things up and keep your site live!

Understanding DNS propagation and website availability

DNS propagation is the time it takes for changes to your domain’s DNS records to update across every server in the world. 

This process usually takes 24-48 hours, but it can be as quick as 15 minutes or, in some cases, stretch to 72 hours.

Propagation isn’t instant or uniform. Some visitors will see your updated site almost immediately, while others may still be sent to the old server for hours – or even days. There’s no way to force all servers to update at once; you’re essentially waiting for the internet to catch up.

This happens because DNS is a distributed system. Servers cache DNS data to speed up lookups, so visitors aren’t waiting for every request to travel across the globe. Caching is great for performance, but it also causes delays.

During propagation, your website isn’t “down.” It’s in a transitional state where access depends on which DNS servers your visitors’ ISPs are using. Still, this uneven availability can disrupt business operations, delay email delivery, and create a confusing experience for customers if it’s not planned for.

Factors that affect DNS propagation times

Several things influence how quickly DNS changes take effect. While some factors are under your control, others depend on the wider internet infrastructure. Here’s what makes the biggest difference:

ISP

Internet Service Providers (ISPs) each maintain their own DNS caching policies. Some refresh their caches within minutes, while others take hours. Larger ISPs may also have multiple caching servers in different locations, each updating at different times. This is why two people on the same ISP (but in different regions) can get different results. In some cases, users can bypass their ISP’s slower updates by switching to public DNS services like Google DNS (8.8.8.8) or Cloudflare (1.1.1.1).

TTL

Time To Live (TTL) is a DNS setting that tells servers how long to cache a record before checking for an update. It can be set per record type, but keep in mind it only affects future queries – it won’t force servers to refresh already-cached data.

TTL is measured in seconds, so the default A-record TTL of 14400 would represent 14,400 seconds, or four hours. Lower TTL values can speed up propagation, but may slightly slow website performance due to more frequent lookups. TTL can be set per record type, but keep in mind it only affects future queries – it won’t force servers to refresh already-cached data.

Domain registry

Your domain registry, such as Verisign for .com domains, also impacts propagation. Changes to nameservers tend to take longer than updates to individual DNS records. Different top-level domains (.com, .org, .io, etc.) have their own update schedules, which can slightly alter timelines.

Record type

Not all DNS records travel at the same speed. A records (linking domains to IP addresses), CNAME records (pointing one domain to another), and MX records (handling email routing) may propagate at different rates depending on how the DNS infrastructure prioritizes them.

DNS provider infrastructure

A high-quality DNS provider with a global, well-optimized network can push changes out faster. Cloudflare, for example, is the fastest DNS provider worldwide, with servers in hundreds of data centers. This global reach reduces geographic bottlenecks and speeds up updates for users everywhere.

Browser cache

Web browsers store DNS information locally to load websites faster. Even after you update your DNS, a browser might keep showing the old version until its cache expires or you manually clear it.

Operating system cache

Your device’s operating system also keeps its own DNS cache, separate from your browser. This speeds up lookups for all applications, but it can delay the appearance of DNS changes until the cache is refreshed or cleared.

Network conditions

Internet traffic jams – whether from congestion, routing inefficiencies, or temporary outages – can slow down how quickly DNS queries travel between servers. These conditions are outside your control but can still influence propagation times.

How BigScoots can help speed up DNS propagation

A managed hosting service can take the stress out of DNS changes. Instead of trying to troubleshoot on your own, you have a team that understands the ripple effect of DNS propagation and knows how to make it happen faster. Think of it like tossing a stone into a pond – the closer you are to the center, the quicker the ripples spread to every end of the pond. With the right infrastructure and a high-quality DNS provider, those ripples move a lot faster than they would from the edge.

At BigScoots, a managed hosting provider for WordPress, we include DNS management expertise as part of every free migration. Our 24/7/365 management team handles configuration, plans the optimal timing for changes, and ensures you avoid the pitfalls that can cause extended downtime.

One of BigScoots’ biggest advantages is our deep integration with Cloudflare. Our infrastructure uses an edge-focused architecture and a direct fiber connection to Cloudflare’s data centers, giving you low-latency access to one of the fastest DNS networks in the world. Cloudflare’s globally distributed network of data centers across more than 330 cities offers extremely low TTL settings – as little as 60 seconds – for near-instant cache refreshes.

That speed holds even under pressure. When a DNS record changes on a high-traffic site, the surge in queries can overwhelm weaker DNS providers, leading to throttling or intermittent resolution issues. Cloudflare avoids throttling, keeping DNS resolution stable even during heavy load. Paired with BigScoots’ edge-first approach, changes that might take 24-48 hours with traditional hosting can often propagate in just hours.

BigScoots also streamlines DNS management in other ways:

  • Domain registration within the platform: Manage hosting and DNS records in one place, eliminating delays and reducing the risk of misconfiguration.
  • Proactive TTL management: Experts lower TTL values ahead of planned changes to speed up propagation, then restore them to normal once updates are verified, keeping performance steady.
  • Continuous monitoring: Systems detect DNS issues before they affect visitors, and support staff can implement temporary solutions if needed.
  • Flawless execution from the start: Every DNS change is planned, tested, and deployed with minimal disruption.

With BigScoots, you’re not just waiting for DNS propagation – you’re accelerating it and keeping your site live for as many visitors as possible throughout the process.

Planning ahead: How to prepare your site for DNS changes

As DNS changes typically take 24-48 hours to fully propagate, if you’re not prepared, that window can bring unpredictable access issues for your visitors. A little planning goes a long way toward keeping your site running smoothly and avoiding lost sales or engagement.

One of the simplest ways to reduce impact is to schedule DNS changes during low-traffic periods. Late evenings, nights, or weekends often work best, but you should consult your analytics to know for sure. This minimizes disruptions during your busiest hours, protecting both the user experience and your bottom line.

Before you make any DNS change, follow this pre-change checklist:

  • Backup your website and DNS settings: Create a full backup of your site files, databases, and current DNS zone records. If anything goes wrong, you can restore quickly without losing data.
  • Inform stakeholders and internal teams: Give staff, clients, or partners a heads-up about the change and potential temporary access issues so they can prepare for customer inquiries or service delays.
  • Prepare user communication: Draft a short, clear update for your website, email list, or social media channels explaining that access may be temporarily inconsistent and why. Being upfront builds trust and helps manage expectations.

Ensuring continuous access when DNS updates aren’t fully propagated

During DNS propagation, visitors’ experiences can vary. Some will reach your new server instantly, while others may still be sent to the old one – simply because their DNS server hasn’t updated yet. Without preparation, this split can cause confusion, inconsistent content, or missed transactions.

To keep your site accessible for everyone, consider these strategies:

  • Maintenance mode redirect: Keep the old server online with a lightweight maintenance page that automatically redirects visitors to your new site’s IP address. You can do this with a simple HTML meta refresh:

<meta http-equiv=”refresh” content=”0; url=http://NEW-IP-ADDRESS” />

  • Hosts file modifications: For team members or priority users, updating their computer’s hosts file lets them bypass DNS and connect directly to the new site immediately.
  • Reverse proxy: A reverse proxy server can route visitors to the correct server based on their location or DNS resolution status, ensuring they reach the most up-to-date content.
  • Duplicate content on both servers: Keeping the same content live on both servers during the transition ensures visitors see the same information regardless of which server they connect to.
  • Use a CDN: A content delivery network can serve cached content from edge locations, updating quickly when DNS changes are made and smoothing out the visitor experience.

For eCommerce or membership sites, you’ll also need to plan for session and database synchronization – or even use a shared database – so that orders, logins, or profile updates made during the transition aren’t lost.

With these measures in place, you remove much of the waiting game from DNS propagation and keep your site running smoothly for all visitors.

Eliminate DNS downtime with BigScoots’ migration service

With BigScoots, DNS propagation doesn’t have to be stressful – or even noticeable to your visitors. Every plan includes free migrations, and their expert team manages the process from start to finish, including all DNS configuration.

Using advanced techniques and careful timing, BigScoots’ migration specialists ensure zero downtime during the switch. Our 24/7/365 management team actively monitors the transition in real time, ready to step in instantly if needed. This hands-on approach is backed by our 99.99% uptime guarantee, which extends through migration periods, so your site stays live and your audience stays connected.

From planning TTL adjustments to executing DNS updates with precision, BigScoots removes the uncertainty from site moves. The result is a faster, smoother, and stress-free migration – without the lost sales, frustrated customers, or brand damage that downtime can cause.

If you’re ready to avoid DNS headaches altogether, explore BigScoots’ Managed Hosting for WordPress plans and let our team handle your next migration with the care and expertise your business deserves.