B
Evidence Grade B
Graded
accuracy verified by the review judge
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Recent
523 days
523 days -- seo recovery time for website migrations (2025)
Search Engine Journal's analysis of 892 website migrations found an average SEO recovery time of 523 days for migrations that damaged SEO.
- Secondhand citation of Search Engine Journal analysis
- 17% of sites never recover even after 1,000 days
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Lighthouse Research Team
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Evidence graded
Value
523 days
Unit
Duration Days
Data Vintage
2025
Entity
Sample Size
892
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
60
Freshness
95
Source
Search Engine Journal
Primary
Tier C
https://www.everythingmachines.com/blog/stop-retrofitting-your-website-for-ai ↗
Source Article
Stop Retrofitting Your Website for AI — EverythingMachines
Stop Retrofitting Your Website for AI
Last month, a CMO I respect showed me an invoice. Six figures. The deliverable: an agency “AI-optimizing” her website. Schema markup. Meta tag rewrites. Long-form content. Technical updates to make the site “AI-friendly.”
She was proud of the investment. I didn’…
Original Research
Search Engine Journal
· Original study ↗
Methodology
Search Engine Journal migration analysis cited secondhand
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
website migrations: 523 days seo recovery time. Source: Search Engine Journal (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/seo-recovery-time-523-days
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<blockquote cite="https://lighthousedata.io/data/seo-recovery-time-523-days" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>523 days</strong> -- seo recovery time for website migrations<br><small>Source: Search Engine Journal (2025) · <a href="https://lighthousedata.io/data/seo-recovery-time-523-days" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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