Migrate from Replug to Flyn
Export your Replug links, preview them in Flyn for free, and move your branded domain's DNS
Last updated: September 2026
Previewing is free on every plan. Importing needs Pro, Lifetime or Team.
Already have a Flyn account? Open the importer
Pre-Migration Checklist
Complete these steps before starting the migration to ensure a smooth transition.
- 1Export all links from Replug as CSV (Manage > Replug Links > CSV Export) and check the emailed file
- 2Document your current custom domain DNS settings (screenshot recommended)
- 3Note any links using retargeting pixels, CTA overlays, or bio pages so you can decide what to recreate
- 4If your links use your own branded domain, add it in Flyn (Settings > Domains) before you import
- 5Check your Flyn plan: previewing an import is free, creating the links needs Pro, Lifetime or Team
- 6Notify your team about the upcoming migration window
Step 1: Export from Replug
First, get your existing links out of Replug so you can import them into Flyn.
Log in to your Replug account
Sign in to your Replug dashboard at app.replug.io.
Open Manage > Replug Links
Open the Manage tab and go to Replug Links, where all of your branded links appear.
Click CSV Export
Use the CSV Export button, pick the Brands and Campaigns to include, and tick the columns you want. Include the short link and the destination URL, plus tags if you use them.
Download the emailed file
Replug emails the file with the subject "Export is ready!". Because you choose the columns, the headers vary between exports.
Step 2: Import into Flyn
Upload your export and Flyn detects the format, maps the columns (you can change any of them), and previews every link before anything is created. Previewing is free; importing needs Pro, Lifetime or Team.
Using your own branded domain? Add it in Settings > Domains before you import (Step 3 lists the DNS records), so the preview can match those links to it. Want to look first? Drop the file on the migration page: it is read in your browser and nothing is uploaded.
Create a Flyn account
Sign up at flyn.to/signup, no credit card required. Uploading and previewing an import is free on every plan; creating the links needs Pro, Lifetime or Team.
Open Links > Import links
In the Flyn dashboard, open the Links page and choose Import links, or go straight to flyn.to/links/import.
Upload your Replug CSV
Drag and drop the file onto the importer, click to browse, or paste the rows (CSV, TSV and plain text all work). Flyn has no fixed template for this export, so it finds the destination and short link columns from their contents, whatever the headers are called. You can change any column mapping in the Review step.
Preview, then import
The preview shows what will happen to every link before anything is created. Links on your own branded domain can keep their back-halves when that domain is added in Flyn first. Links on Replug's own domains cannot move, so each gets a new Flyn link on flyn.co (or a domain you pick in the preview). Choose whether to reuse old back-halves on flyn.co where they are free, and whether a taken back-half is skipped or renamed; existing links are never overwritten. Then start the import and download the report that maps each old short link to its new one.
Step 3: Domain & DNS Migration
Only links on your own branded domain can keep working after the move. Add the domain in Flyn and import its links before you switch DNS, so the links are already there when traffic arrives. Links on domains Replug owns stay with Replug, and printed QR codes that encode those links keep pointing there.
Add your domain in Flyn first
In Flyn, go to Settings > Domains > Add Domain and enter your branded short domain (for example go.yourcompany.com). Custom domains are included on Pro, Lifetime and Team, up to 3 per account. Do this before you import, so the preview matches your links to the domain.
Add the TXT record and click Verify
At your DNS provider, add the TXT record Flyn shows: _flyn on your root domain (_flyn.yourcompany.com, even when the short domain is go.yourcompany.com; many DNS panels want just _flyn as the name) with the flyn-verify value. Click Verify. This proves you own the domain and does not change where your links point.
Point the domain at Flyn
After your links are imported, replace the CNAME that points your domain at Replug: use a CNAME to cname.flyn.to for a subdomain, or an A record to 76.76.21.21 for a root domain. Keep the hostname the same.
Verify again and test
DNS changes usually apply within minutes but can take up to 48 hours. Click Verify again: Flyn marks the domain Active once it finds the TXT record and the record pointing at Flyn. Then open a few old short links to confirm they redirect.
DNS Record Summary
| Field | Before | After |
|---|---|---|
| Type | CNAME | CNAME (subdomain) or A (root domain) |
| Host | go (or your subdomain) | go (no change), or @ for a root domain |
| Target | Your Replug target | cname.flyn.to or 76.76.21.21 |
| Ownership (TXT) | None | _flyn.yourcompany.com with the flyn-verify= value from Settings > Domains |
What Transfers
Here is what carries over from Replug to Flyn and what needs to be reconfigured. A back-half can be reused when it uses only letters, numbers, hyphens and underscores and is not reserved for Flyn's own pages; the preview flags the rest, and those links get a new random back-half.
| Item | Transfers | Notes |
|---|---|---|
| Destination URLs | All long URLs are preserved exactly as-is | |
| Custom slugs | On your domain | Kept on your own branded domain when it is added in Flyn before you import. Back-halves from Replug's own domains can be reused on flyn.co (or a domain you pick in the preview) when they are free |
| Tags | If in file | Mapped when you include tags in the export |
| Custom domains | Add it in Flyn before importing, then point its CNAME to cname.flyn.to (root domain: A record 76.76.21.21) and click Verify | |
| Click analytics | Historical analytics stay in Replug, new clicks tracked in Flyn | |
| Retargeting pixels | Recreate | Configs do not auto-transfer, but Flyn Pro natively fires retargeting pixels on links (Meta, Google Ads, TikTok and 10 more), so re-add them in Flyn |
| CTA overlays & bio pages | Replug-specific features; Flyn focuses on links, analytics, and routing |
Post-Migration Verification
After completing the migration, work through this checklist to verify everything is working.
- Verify 5-10 sample short links resolve to correct destinations
- Confirm custom domain shows a green checkmark in Flyn dashboard
- Check that new clicks are appearing in Flyn analytics
- For links that relied on Replug pixels, re-add retargeting pixels in Flyn Pro (Meta, Google Ads, TikTok and 10 more), or set up UTM-based audiences
- Update any integrations or API calls to use Flyn endpoints
- Keep your Replug account active for 30 days as a safety net
Troubleshooting
Common issues and how to resolve them.
Links returning 404 after migration
DNS changes can take up to 48 hours to reach everyone. Use a DNS checker (like whatsmydns.net) to confirm the record points to cname.flyn.to (or 76.76.21.21 for a root domain), and clear your browser cache. The domain should show Active under Settings > Domains; if it does not, click Verify there. If you imported before adding the domain in Flyn, those links were created on flyn.co: add the domain and run the import again.
Retargeting pixels no longer firing
Replug pixel configs do not carry over in the CSV export, but Flyn Pro natively fires retargeting pixels on links (Meta, Google Ads, TikTok and 10 more), so re-add them in Flyn. Prefer cookieless? Tag links with the UTM builder and build audiences in your ad platform.
CTA overlays or bio pages missing
CTA overlays, widgets, and bio-link pages are Replug-specific features and are not part of a link export. Flyn focuses on links, analytics, A/B testing, and routing, recreate CTAs/bio pages in a dedicated tool if you still need them.
Columns mapped to the wrong fields
Replug lets you choose the export columns, so headers vary. Flyn finds URL columns from their contents; if one is mapped wrong, change it in the Review step. If accented characters look broken, save the file as UTF-8 CSV.
Frequently Asked Questions
How long does it take to migrate from Replug to Flyn?
Replug emails the export, so part of the time is waiting for that email. In Flyn, the importer creates links in batches of 100 with a progress bar, so most imports take minutes. Accounts in their first week may have a daily limit on new links; if an import reaches it, the importer stops and lets you download the remaining rows as a file to import once 24 hours have passed. If you move a branded domain, DNS changes usually apply within minutes but can take up to 48 hours.
Will my existing short links break during migration?
Links on your own branded domain keep working if you import them onto that domain before you switch DNS: add the domain in Flyn, import, then change the record and click Verify. While DNS updates, some visitors still reach Replug and others reach Flyn, and requests can fail briefly while the SSL certificate is issued, so keep your Replug account active until the switch is done and lower the record's TTL a day ahead.
Do my Replug retargeting pixels transfer to Flyn?
The pixel configs are not part of the CSV export, but Flyn Pro natively supports retargeting pixels on links (Meta, Google Ads, TikTok and 10 more), so just re-add them in Flyn. You can also use the built-in UTM builder to build audiences in your ad platform, a cookieless approach.
Do my Replug analytics transfer to Flyn?
Historical click data stays in Replug. Once your domain points to Flyn, all new clicks are tracked in Flyn's analytics with richer data including real-time streams, city-level geo, and A/B test metrics, with no monthly click limit.
What happens to my Replug CTA overlays and bio pages?
Those are Replug-specific marketing features and do not migrate. Flyn focuses on links, deep analytics, A/B testing, geo-routing, and deep links. If CTAs or bio pages are core to your workflow, keep them in a dedicated tool alongside Flyn.
Can I keep using Replug and Flyn simultaneously?
Yes. You can create new links in Flyn while keeping your Replug account active. However, a custom domain can only point to one service at a time via DNS.
Is there a limit on how many links I can import?
Previewing an import is free on every plan, and on the free plan you can still create 25 links a month by hand. Importing needs Pro, Lifetime or Team, with no cap on how many links you import, and no monthly click ceiling once imported. Accounts less than 7 days old may have a daily limit on new links, an abuse safeguard; if an import reaches it, the importer stops cleanly and lets you download the rows that were not imported, to import once 24 hours have passed. The REST API takes one destination per request (Create Many only copies a single destination) and is rate limited, so the importer is the way to move a whole account.
Ready to Migrate from Replug?
Create a free Flyn account and preview your Replug import at no cost. No credit card required to sign up. Importing needs Pro, Lifetime or Team, and most imports take minutes. Accounts in their first week may have a daily limit on new links; if an import reaches it, the importer stops and lets you download the remaining rows as a file to import once 24 hours have passed.
Already have a Flyn account? Open the importer