1. Executive Summary
If you are considering renewing your website, let me start with the answer. Don’t replace the design just because you feel it’s outdated. If done well, renewal will boost both your brand and inquiries, but if done poorly, you will lose the search rankings and incoming keywords you have built up over the years. The causes of post-renewal comments like, “The site is pretty, but it doesn’t show up when you search,” are mostly the same. The URL has changed, but the old address and the new address are not connected.
So we need order. First, check whether the site is really in the stage of being overhauled, first check whether the problem can be solved with partial improvement, and then, if it is concluded that a full renewal is right, then the design of the transfer of SEO assets is included in the plan. This article organizes the three steps into practical standards.
Many people first ask about the renewal cost, but the cost depends on “how much it will cost.” A partial improvement is the scale of maintenance that involves fixing a few pages, but a full renewal is actually closer to creating a new page. The scope of the reorganization must be confirmed before receiving a quote for the comparison to be meaningful.
key message
The most expensive mistake in renewal is not a design failure. Transfer failedno see. Google's page evaluation is based on URL units, so it does not automatically follow when the address changes.
No matter how good a new site is, if search traffic stops, inquiries will also stop. If there is no 'SEO transfer' item in the renewal plan, the plan is not yet complete.
2. 8 signs you need renewal
From the conclusion. Among the eight below If three or more apply, it is time to consider renewal. In particular, the more technical signals (⑥~⑧) are left unattended, the greater the recovery cost, so it is safer to schedule even if only one is detected.
2.1 Signals that visitors know first
- ① Not compatible with mobile: If you have to spread your finger across the screen on your smartphone to enlarge the text to read it, you already have the answer. Google has fully implemented a mobile-first index that evaluates sites based on mobile screens. Sites that are broken on mobile are also pushed out in searches.
- ② Loading over 3 seconds: If it takes more than 3 seconds for the first screen to appear, the number of visitors waiting will drastically decrease. Google's recommended LCP (maximum content display time) standard is also less than 2.5 seconds. Just enter your address into PageSpeed Insights and it will be measured for free.
- ③ Brand mismatch: The company has completed its rebranding, but the old logo and old slogan remain on the website. If the business card and website look like different companies, trust will be lost.
- ④ Reduction in inquiries: If the number of visitors is similar but inquiries and conversions are decreasing, it means that the site is failing to persuade. It is more likely a problem of structure and movement rather than content.
2.2 Signals known only to operators
- ⑤ Unmanageable structure: If you have to send an email to an outsourcing company and wait for several days just to change a single line of text, the structure itself is outdated. Sites that cannot be fixed directly by the person in charge are neglected, and sites that are neglected deteriorate more quickly.
- ⑥ Security warning: HTTP sites with ‘Needs Caution’ displayed in the address bar, SSL certificates left expired. This is a situation where the browser recommends leaving before the visitor.
- ⑦ End of CMS/technical support: If the server's PHP version has ended support or the web builder/CMS you were using has stopped updating, security patches have also stopped. You need to move it before an accident occurs.
- ⑧ Search exposure decline: If the number of impressions and clicks on the search console is steadily decreasing on a quarterly basis, it is already past time to fix whether it is content competitiveness or technical quality.
How to check signals by numbers
Don't judge by feel, just try measuring with three tools for 10 minutes. PageSpeed Insightsspeed and mobile responsiveness, Google Search ConsoleSearch exposure trend, Analytics (GA)Contact conversion rate.
These three numbers are also the baseline to compare performance after renewal. Capture the pre-renewal numbers now.
3. Partial improvement vs. complete renewal
It is not something that should be replaced immediately once the signal is confirmed. There is one basic principle. If the problem is in the ‘page’, partial improvement is required, if the problem is in the ‘structure’, complete renewal. Not liking the main design and having CMS support terminated are completely different things.
3.1 When is partial improvement sufficient?
The following four will be resolved without a complete overhaul:
- Main/main sub pages Only the design is old Case — redesigning the page is sufficient
- speed problemIf it comes from image size or too many plugins — this can be resolved with optimization.
- If the information is out of date — what’s needed is not a renewal. Content updates
- If there are no conversions — contact button location, landing configuration, etc. Partial improvements and testingfrom
Conversely, such as non-mobile support, termination of CMS support, and unmanageable structure. If the foundation is the problem, partial repairs are a waste of money.no see. Since it is like re-papering over an old frame, the same problem will return within a year or two.
3.2 Judgment criteria table
| Judgment criteria | partial improvement | Complete renewal |
|---|---|---|
| location of the problem | Specific page/elements (design, text, images) | Site foundation (CMS, menu structure, non-responsive) |
| Mobile response | Responsive, but some screens are awkward | There is no responsiveness itself |
| management environment | Direct modification possible, some inconvenience | Requires outsourcing for each revision, CMS support ends |
| URL structure | Maintenance (no SEO risk) | High possibility of change (transfer design required) |
| period | Days to weeks | 2~4 months or more |
| cost scale | maintenance level | Based on new production |
If you are leaning towards a full renewal, it is better to get a quote with an understanding of the cost structure. How the quotation items are structured and where the amounts are divided Structure of website production costsIt was organized separately.
4. Transfer design to protect SEO assets
This chapter is the core of this article. The causes of search rankings collapsing in a complete renewal are almost all converged. The URL has changed, but the old address and the new address are not connected. Google's page ratings are accumulated on a per URL basis. The moment /about.php is changed to /company/about, the old page disappears to Google and the new page is seen for the first time. The device that bridges this gap is the 301 redirect.
4.1 Start by investigating what your assets are
Before creating a redirect map, first determine which pages are worth protecting. One tool is enough to get you started: Google Search Console.
- Performance report: Download pages with clicks and impressions and incoming keywords for the past 12 months. The page captured here is a list of assets that will soon be kept.
- Link report: Check which page the backlink provided by the external site is directed to. If you change the address of the page with the backlink and omit the redirect, the value of the link evaporates along with the 404.
- Full URL list: Extract the entire URL of the current site using a crawling tool such as sitemap (sitemap.xml) or Screaming Frog. Even if the site is only a few pages long, the list is longer than you might think if you count attachment and image addresses.
4.2 How to create a redirect map?
Two columns of a spreadsheet will do. Old URL on the left, corresponding new URL on the right. The principle is 1:1 mappingno see. The old service introduction is the new service introduction, and the old blog post is the same post at the new address. If there are no more pages to respond to, send them to the nearest top category, but avoid sending all URLs that have nowhere to go to the main page. Google may treat a bunch of main redirects as de facto 404s (soft 404s).
301 and 302 are different
301 means “permanent move”, 302 means “temporarily moving away”no see. For renewal transfer, you must use 301 to transfer the rating of the existing page to the new address.
Apply it through server settings (.htaccess, nginx conf) or CMS's redirect function, and open a few old URLs directly after application. You can immediately check whether it moves to a new address or whether the response code is 301 in the Network tab of Chrome Developer Tools.
4.3 Transfer Check Item Table
| check items | point of view | Confirmation details |
|---|---|---|
| Investigation of inflow pages and keywords | Before starting | Download 12 months of GSC performance report |
| Backlink Research | Before starting | List linked pages in the GSC Link Report |
| 301 redirect map | Immediately after finalizing the new URL structure | Old URL → New URL Create 1:1 mapping sheet |
| Meta information transfer | When transferring content | Title·description·structured data page-by-page migration |
| Redirect operation verification | Immediately after opening | Check response code 301 for major old URLs |
| Resubmit sitemap | Immediately after opening | Submit new sitemap.xml to GSC, request indexing |
| Ranking/inflow monitoring | 4-8 weeks after opening | Track key keyword rankings, 404 errors, crawl statistics |
Even if you transfer properly, your ranking may fluctuate in the weeks immediately after opening. This is because it takes time for Google to re-crawl the new structure and move the ratings over. If you panic and change the URL again, confusion will only increase. The transfer design involves waiting and comparing with the baseline figures backed up before renewal.
Additionally, search traffic is no longer just a problem for traditional search. If we consider the content structure cited in AI search, Search exposure strategy that goes beyond SEO to GEORead together. Renewal is a rare opportunity to reorganize the site's content structure, so it should be reflected at this time to avoid working twice.
5. 5 steps of renewal process
The standard flow for a total renewal is five steps. Visible design and development is only the third step, Success or failure is determined by the first step (diagnosis) and the last step (inspection/monitoring).
Step 1 — Diagnosis and Goal Setting
This is the stage of securing data from the current site. Backing up GSC·GA figures, investigating incoming keywords and backlinks, and creating content inventory (full page list and decisions to maintain, integrate, and discard). Next, “what needs to improve with renewal” is defined numerically. The design will vary depending on whether it is inquiry conversion rate, search traffic, or recruitment support.
Step 2 — Information structure/content design
Confirm the menu structure and content for each page. Since the new URL structure is determined at this stage, Creating a redirect map also starts here.do. If the menu is reversed after the design draft is published, both schedule and cost will be pushed back. Keeping order is half the battle you can avoid.
Step 3 — Design/Development
After the draft is confirmed, publishing and development will proceed. There are two things the person in charge should take care of. Review the draft first on the mobile screen, and confirm in documentation the extent to which modifications can be made directly on the administrator screen after opening. If signal ⑤ (unmanageable structure) is not to be repeated as a reason for the next renewal, it must be nailed down now.
Step 4 — Staging Inspection
Before opening, it is inspected in the same environment (staging) as the actual server. Checking for typos and broken links on all pages, testing form transmission (up to making sure inquiries actually arrive by email), checking mobile devices, and redirect map sample verification. Projects that do not include an inspection period in the schedule will undergo this process as an actual user after opening.
Step 5 — Open and Monitor
On the opening day, confirm removal of noindex for staging, confirm redirect operation, and submit new sitemap to GSC. For the next 4 to 8 weeks, view your 404 errors, crawl statistics, and top keyword rankings on a weekly basis. Opening is not the end, but the beginning of transfer verification.
6. Traps that lead to renewal failure
The pattern of failed renewals repeats itself. The four below are particularly frequent.
Pitfall 1 — Rushing on Opening Day
If the schedule is set to “open until the day before the event,” the first thing to be cut is inspection. The opening date cannot be postponed and development is delayed, so several days of staging inspection are reduced to half a day. Most renewals are made this way, with customers first discovering broken links and typos. If you are going to set an opening date Please allow 1-2 weeks as an inspection period between the development completion date and the opening date.
Pitfall 2 — Missing content transfer
When creating a new site, it's easy to decide, "The old posts are old, let's throw them away." However, in many cases, those old posts are generating most of the search traffic. Even if the number of visitors appears to be small, if the accumulated blog posts and data pages contain long-tail keywords, deletion means deletion of inflow. When deciding whether to dispose of something, use GSC data, not your feelings.
Pitfall 3 — Open with noindex left
The staging server should not be exposed to searches, so set noindex or block crawling with robots.txt. The problem is that this setting is carried over to the actual server. The site opens normally, but the search exposure quietly disappears, and I only find it a few weeks later when I hear, “It doesn’t show up even when I search.”
5-minute inspection on opening day
Open any page of the new site and open the source view. Search for noindexdo, domain/robots.txtOpen to check the Disallow settings and enter one of the old URLs. Does it go to 301? I see it.
With these three things, you can weed out most of the worst accidents on opening day.
Pitfall 4 — Expecting to solve everything with renewal
Renewal is about creating a new bowl, not creating content to contain it. Even if you renew a site with poor content, it will only end up as a new, poor site. Along with the reorganization, a content operation plan — who will post, how often, and what — must be followed to maintain the renewal effect.
7. Conclusion and Checklist
The gist of website renewal can be reduced to two sentences. Whether or not to change is determined by signals and data, not by feeling. If you decide to replace it, put as much effort into planning the move as you would into building a new one. The new design is visible, but the preserved search assets are invisible. So it is often omitted, and the cost of omission is charged after the opening.
Pre-departure checklist
- Signal check: Check the applicable items among the 8 signals in Chapter 2 — If 3 or more are present, consider renewal.
- Range judgment: Determine whether the problem is the page or the structure - If the page is a problem, it is concluded with partial improvement
- Baseline backup: Secure GSC/GA figures, inflow keywords, and backlink list before renewal
- Redirect map: As soon as the new URL structure is confirmed, create an old URL → new URL 1:1 mapping sheet.
- Secure the inspection period: 1-2 week staging inspection between development completion and opening is specified in the schedule
- Inspection on opening day: Monitoring for 4 to 8 weeks after confirmation of noindex removal, robots.txt, 301 operation, and site map submission
If these six items are included in the plan, half of the renewal has already been won, no matter which production company you work with. The other half is content and design, which continues to build even after the new site is launched.