Loss of traffic after a domain change — a classic scenario. A client moves, forgets to set up 301s, and search engines see 404s. In our experience, an e‑commerce site with 50,000 URLs saw a traffic drop of 80% in a week after migration. Proper mapping and correct redirects restored positions within a month. Without 301s you lose not only traffic but also link equity. Preserving rankings is far cheaper than relaunching ads. Saving budget on position recovery is another strong argument for a quality migration. A typical 301 redirect setup starts at $500, saving thousands in potential ad spend.
Proper 301 redirect setup preserves up to 99% of rankings. Even a single missed URL can cost thousands of visits per month.
What is 301 and why is it important?
HTTP 301 — code "Moved Permanently", passing 90–99% of PageRank to the new page. In comparison, 302 passes less than 10% — ten times worse. Google typically transfers positions within 2–8 weeks after correct setup. Use only 301 for permanent changes. For temporary campaigns or A/B tests, 302 is acceptable, but for migration — only 301.
Why is checking redirect chains important?
A chain of multiple redirects (e.g., A→B→C) dilutes the transferred link equity. Each step loses 5–10% of PageRank. We ensure chains do not exceed one step. After migration we crawl the site with Screaming Frog to detect such issues. On one project, a three‑step chain reduced weight transfer by 25% — fixing it restored traffic in two weeks.
How to avoid traffic loss during migration?
Before the move we compile a full URL mapping, paying special attention to high‑traffic pages and backlinks. After deployment we monitor Google Search Console for 404s. Over the next month we track positions and adjust redirects if needed. It is also useful to check www and non‑www versions of the domain to avoid additional gaps. Also, consider canonical tags and indexation settings to prevent duplicate content issues.
Practice case: migration of a site to Laravel. The original site was on WordPress with 15,000 URLs. We automatically imported the structure into the admin panel, set up redirects via middleware with Redis caching. After deployment we monitored 404s — found 2% errors caused by case‑sensitive paths. Fixed within an hour.
What is included in 301 redirect setup (turnkey)
Our turnkey service includes:
- Audit of the old site: crawl all URLs, analyze traffic from Google Search Console, and evaluate crawl budget.
- Map each old URL to a new one, prioritize by traffic and backlinks and link equity.
- Implement redirects via .htaccess, Nginx, or middleware (Laravel, Django, Node.js) — we handle all technical details.
- Test chains, absence of 404s, and correct weight transfer using Screaming Frog and Ahrefs.
- Monitor in Google Search Console for 30 days after deployment.
- Deliverables: detailed documentation of all redirects, access to monitoring dashboard, training for your team on redirect management, and 30 days of support.
- Get a project estimate — contact us for a free consultation.
Migration strategy
Before the move:
- Crawl the old site (Screaming Frog, Sitebulb) — export all indexable URLs.
- Check via Google Search Console — find pages with traffic and rankings.
- Map old URLs to new ones (mapping table).
- Prioritize high‑traffic pages.
| Old URL | New URL | Priority |
|---|---|---|
/catalog.php?cat=12 |
/catalog/smartphones |
High |
/product.php?id=4521 |
/products/iphone-15-pro |
High |
/about.html |
/o-kompanii |
Medium |
/news/archived/post-1 |
/blog/post-1-slug |
Low |
301 redirect setup process
| Step | Description |
|---|---|
| Audit old site | Crawl, export all URLs, analyze traffic from GSC |
| Mapping | Match each old URL with new, prioritize |
| Implementation | Redirects via .htaccess, Nginx, or middleware on Laravel/other stack |
| Testing | Check chains, no 404s, correct weight transfer |
| Monitoring | Track 404s and positions for 30 days after deployment |
| Report | Document all redirects and verification results |
Common mistakes
- Using 302 instead of 301 — weight not transferred.
- Redirecting to homepage instead of relevant pages — context lost.
- Chains of more than one step — dilute PageRank.
- Ignoring URL case — broken links.
- Unaccounted URL parameters — pages not indexed.
- Neglecting canonical signals — can lead to duplicate content.
Post‑migration checks
- Screaming Frog: crawl new site, verify redirect chains (no more than one step).
- Google Search Console: monitor Coverage → Not Found (404).
- Ahrefs/Semrush: verify backlinks are correctly redirected.
- Check www and non‑www versions of the domain.
- Validate canonical tags and indexation status.
Setup time: 1–3 days depending on mapping volume. Get a consultation on redirect setup before migration — it reduces risks. Order an express audit of current redirects to ensure correct weight transfer. Contact us for a turnkey solution or project estimate.