The verdict in three sentences
A trade association with 2,400 member companies in New York still running Drupal 7, which has had no official security fixes since January 5, 2025, should budget 30,000 to 70,000 USD for an agency migration in 2026, over 4 to 6 months. The Next.js plus headless CMS option (0 to 450 USD per month) delivers the best performance and shrinks the attack surface, provided the migration of 3,500 pages and 9,000 PDF documents is handled seriously. The main risk is not technical: it is losing search visits if the 301 redirect plan is incomplete.
Drupal 10, WordPress or headless Next.js: compare before choosing
The executive director must choose between three targets. Each is defensible, but not for the same reasons.
| Criterion | Drupal 10/11 | WordPress | Next.js + headless CMS |
|---|---|---|---|
| Migration budget (market estimate) | 35,000 to 80,000 USD | 22,000 to 50,000 USD | 30,000 to 70,000 USD |
| Importing Drupal 7 content | Native Migrate module, the most direct | Import scripts and plugins | Import scripts into the headless CMS |
| Member area and granular permissions | Very good, native | Fair with plugins | Custom, very flexible |
| Performance (target mobile LCP) | 2 to 3 s | 2.5 to 3.5 s | 1 to 2 s |
| Attack surface | Medium, monthly updates | High with 20 to 40 plugins | Low, static or cached public site |
| CMS licence cost | 0 USD | 0 USD | 0 to 450 USD per month depending on vendor |
| Talent available in New York | Scarcer, 110 to 170 USD per hour | Plentiful, 75 to 125 USD per hour | Plentiful, 95 to 150 USD per hour |
Drupal 10 remains relevant if the association manages complex permissions (committees, working groups, documents restricted by membership tier). WordPress fits a small editorial team and a mainly informational site. Headless Next.js wins when the public site must be fast, the member area can be rebuilt cleanly and the association wants to separate content from presentation for 8 to 10 years.
Volume, detailed budget and SEO risks
Volume drives the price. Not all 3,500 pages need the same treatment: an audit often shows that 30 to 50% of pages received no visits in 12 months.
| Workstream | Volume | Method | Indicative cost (market estimate) |
|---|---|---|---|
| Content audit and URL inventory | 3,500 pages, 9,000 PDFs | Crawl, analytics export, keep, merge or delete | 3,500 to 7,000 USD |
| Headless content modelling | 12 to 20 content types | Schemas, fields, taxonomies | 4,500 to 9,000 USD |
| Automated page migration | 1,800 to 2,400 pages kept | Scripts, HTML clean-up, sample checks | 7,000 to 16,000 USD |
| PDF migration | 9,000 files | Object storage, metadata, URL preservation | 2,500 to 6,000 USD |
| Next.js front end | 15 to 25 templates | Design system, search, WCAG 2.1 AA accessibility | 9,000 to 23,000 USD |
| Member area | Login, directory, restricted documents | Authentication, permissions by tier | 6,000 to 17,000 USD |
Kolonell benchmark (Kolonell prices, not market prices): a migration of this size with a member area falls under a complex custom application, from 7,000,000 to 15,000,000+ FCFA (10,670 to 22,870+ EUR), with maintenance at 75,000 to 120,000 FCFA per month (110 to 180 EUR).
SEO risks to lock into the contract:
- page-by-page 301 redirects for every URL that received visits or links, no mass redirect to the home page;
- preserved URLs for the most-viewed PDFs, often cited by external sites;
- carry-over of title tags and meta descriptions;
- SEO acceptance testing before cut-over: comparative crawl, 404 checks, sitemap submitted to Search Console on launch day;
- ranking monitoring for 8 to 12 weeks after go-live.
Mini case study
Robert, executive director of a 2,400-member trade association in New York, compares two scenarios over 3 years. Staying on Drupal 7 with third-party extended support costs about 7,000 USD per year, without modernising the site, with a security incident risk that a cyber insurer prices at 45,000 USD of direct costs.
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Illustrative scenario: headless Next.js migration at 52,000 USD, CMS at 230 USD per month and maintenance at 460 USD per month, i.e. 76,840 USD over 3 years. Against 21,000 USD of extended support over the same period, the gap is 55,840 USD. If the fast new site and the redesigned member area reduce churn by 10 more companies retained per year, with average dues of 2,100 USD, the association recovers 63,000 USD over 3 years. A simulation to recalculate with your own membership figures.
FAQ
Can we stay on Drupal 7 in 2026?
Technically yes, with paid extended support at 3,500 to 12,000 USD per year depending on the vendor. It only postpones the problem: PHP, modules and available skills keep ageing.
How long does a 3,500-page migration take?
Allow 4 to 6 months, including 4 to 6 weeks of audit and modelling. The final weeks go to acceptance testing, redirects and training the 3 to 5 editors.
Do all 9,000 PDFs need to be migrated?
Not necessarily. Sorting by date and views often lets you archive 30 to 50% of files outside the site, while keeping the URLs of documents still cited elsewhere.
Is a headless CMS paid?
Some are free when self-hosted, others charge 0 to 450 USD per month depending on users and entries. That cost belongs in the 3-year calculation, just like maintenance.
How do we limit the drop in visits after cut-over?
With a redirect plan covering 100% of URLs that had visits in the last 12 months, SEO acceptance testing before launch and monitoring for 8 to 12 weeks. Kolonell monthly SEO, from 100,000 to 350,000 FCFA per month, can take over after the switch.
Let's scope your project. Send us the Drupal 7 site URL, the volume of pages and documents and your deadline, and we will price the migration and the member area. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
