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Can a marketing agency rebuild my website while continuing existing campaigns?

Yes, and there is one sequence that works. Three things can break on launch day and all three are preventable.

By Alon Darvish · Former Bankruptcy Attorney, 17 Years8 min readUpdated October 2026
Short answer

Can a marketing agency rebuild my website while continuing existing campaigns? Yes — build on a staging URL, launch with the redirect map live in the same moment, then verify tracking before anything else. Campaigns keep running throughout and are repointed only after the new pages are confirmed.

The danger is not the rebuild. It is launching the site and the redirects an hour apart, with your ads pointing at URLs that no longer exist.

  • Published pricing — $2,500, $3,500 and $4,500 a month, on the site.
  • Month to month. No contract is holding you anywhere.
  • A former attorney of 17 years who filed 5,000+ cases works your account.
  • You see your rankings move for 14 days before you are billed a dollar.
  • Law firms only — no other industries, ever.
 Attorney Pro MarketingScorpionFindLawTypical legal agency
Pricing published on the websiteYes — $2,500 / $3,500 / $4,500 per monthNot publishedNot publishedRarely published
Contract termMonth to month, 30 days’ noticeNot publishedNot publishedCommonly 12 months
Who works on your accountA former attorney of 17 years, in every accountAssigned account teamAssigned account teamAccount manager, often across industries
Your website is built onStandard, portable codeProprietary platformFirmSite platformVaries — ask before signing
See results before you are billedYes — 14 days, then you decideNoNoNo
Ad spend billed by Google directly to youYes, no markupAskAskOften passes through the agency

“Not published” means the figure does not appear on that company’s own website as of October 2026 — check for yourself before you sign anything, with them or with us.

The Sequence That Works

One rule governs it: nothing goes live until its replacement is built and tested. Campaigns run untouched throughout the build.

  1. Build on a staging URL, not your domain. The existing site stays live and the campaigns keep pointing at it.
  2. Crawl the existing site and save every URL. This becomes the left-hand column of the redirect map, and you want it independent of anyone.
  3. Prepare the redirect map — every old URL beside its new destination, as a spreadsheet you can read. Page to equivalent page, never everything to the homepage.
  4. Record the baseline before launch: rankings for your target terms, traffic, conversion rate, cost per lead. This is what you will compare against if something goes wrong.
  5. Launch the site and the redirects in the same moment. Not an hour apart. This is the step where most damage happens.
  6. Test immediately. Run the saved URL list and confirm every old URL resolves to its intended destination. Fix misses that day.
  7. Verify tracking with a real test call and a real test form submission, confirming both register as conversions.
  8. Only then repoint ad destination URLs to the new pages, and watch cost per lead for two weeks.

Three Things That Break on Launch Day

⚠ Preventable, and Routinely Not Prevented
  • 1. Ad destination URLs. Your campaigns point at specific pages. If those URLs change and the redirects are not live, your ads send paid traffic to errors — and in some cases ads get disapproved for a broken destination, which stops the campaign entirely.
  • 2. Conversion tracking. The tracking code lives on the website and reports into the ad account. A rebuild without reinstalling it produces an apparent collapse in conversions that is purely measurement, and a bidding strategy relying on conversion data then degrades for real.
  • 3. Redirects. Missing or wrong redirects lose the accumulated authority of every page that moved. Slower to show than the other two and the most expensive.

Note the ordering of harm: items 1 and 2 cost you money immediately and are fixable within hours. Item 3 costs you months and is only partly recoverable.

What Happens to the Ad Account

The account itself is unaffected by a site rebuild — history, conversion data and learning all live in the account rather than on the site. Three practical points:

Keep campaigns running during the build. Pausing them to “wait for the new site” loses momentum and data for no benefit, since the existing site still works.

Expect a short unsettled period after repointing. New landing pages have no performance history, so quality signals and conversion rates take a week or two to stabilise. A dip in the first fortnight is normal; a dip that persists past three weeks is a page problem.

Watch cost per lead rather than clicks. If the new pages convert better, cost per lead falls even if nothing about the campaign changed. If it rises, the new page is worse than the old one — which happens, and is the reason to compare against the pre-launch baseline rather than assume improvement.

One thing worth insisting on regardless: the ad account should be in your firm's name with Google billing your firm directly, so a rebuild cannot become a reason to move accounts around.

AD
From 17 Years of Practice

I approved a redesign that looked far better than what we had, and nobody mentioned redirects. Traffic halved within three weeks. The rebuild was competent work; the twenty-minute spreadsheet nobody made cost us most of a year.

The Launch-Day Checklist

Run these yourself on the day, in this order. It takes about twenty minutes and it catches everything expensive.

  1. Visit five old URLs from your saved list. Each should land on its sensible equivalent, not the homepage and not an error.
  2. Submit a test form. Confirm it arrives by email and registers as a conversion.
  3. Place a test call to each tracked number. Confirm it rings your line and appears in the call log.
  4. Open the site on a phone. Phone number visible without scrolling and tappable.
  5. Check your ad destination URLs resolve correctly, by clicking through from the ads themselves.
  6. Check Search Console for crawl errors over the following three days. Each 404 reported is a page losing authority and each is fixable in minutes if caught.

Attorney Pro Marketing builds and launches the site within three days with no setup fee, and because the same engagement runs the campaigns, the sequence above is one team's work rather than a handoff between two vendors — which is the whole argument on our page about managing the website and advertising together.

Your rankings are recorded on day 0 before the new site goes live, which doubles as the migration baseline, with the movement reported on day 14 before you are billed for that period. The ad account stays in your firm's name, billed directly by Google. Published pricing at $2,500, $3,500 and $4,500 a month, month to month with 30 days' notice.

See it before you pay for it.

We snapshot your rankings on day 0, build and launch your site within three days, and show you the movement on day 14. If it has not moved enough to be worth continuing, you owe nothing for that period and you keep the Google Business Profile work.

Start the free 14 days →

Related Questions

Yes, and you should — pausing campaigns to wait for the new site loses momentum and data for no benefit, since the existing site still works. Build on a staging URL, keep campaigns pointing at the live site, and repoint ad destinations only after the new pages and redirects are confirmed.

Three things: ad destination URLs, which can send paid traffic to errors and in some cases get ads disapproved; conversion tracking, which lives on the site and reports into the ad account, so a rebuild without reinstalling it produces an apparent collapse; and redirects, which is the slowest to show and most expensive.

Yes, in the same moment rather than an hour apart. That gap is where most migration damage happens. Immediately afterwards, run your saved URL list and confirm every old URL resolves to its intended destination, fixing any misses the same day.

A short unsettled period is normal, since new landing pages have no performance history and quality signals take a week or two to stabilise. A dip persisting past three weeks is a page problem. Watch cost per lead rather than clicks, compared against the pre-launch baseline.

You don’t pay until you see the rankings move. Day 0 snapshot, live in 3 days, report on day 14.

Start the free 14 days →
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