Start SIGNAL Continuous Diagnosis

SIGNAL Continuous Diagnosis is JPY 70,000 per month excluding tax (JPY 77,000 including tax). You can apply online and pay by credit card; invoice payment under an electronic contract is available on request. In a single contract for one domain you get the evidence in the code, the recommended improvements, approval and implementation management, and post-launch measurement.

What to check before applying

• Business use by a company or a sole proprietor
• One root domain per contract
• Public websites only
• Login-only pages are outside the standard scope
• Production implementation is carried out by you or your existing web agency
• Large-scale e-commerce, sites of tens of thousands of pages, multilingual sites, and multi-brand/multi-domain setups need a prior consultation
• The standard crawl limit is 500 public URLs
• Priority in-depth analysis covers up to 100 URLs
• The standard target language is Japanese
• Payment is prepaid before use: online application charges the first month at sign-up, and invoice payment terms are confirmed at contract signing
• No pro-rata refund partway through a period

Online application by credit card starts from this page: sign in with the application contact email, enter the payer profile, register the target site, and complete payment in Stripe Checkout. A company or sole proprietor may use the flow. Invoice payment through a consultation is available on request, with payment terms confirmed at contract signing. You can also start from the free diagnosis.

Already have a SIGNAL account?

Returning users sign in with their password and a six-digit email code, then continue to SIGNAL onboarding. The code is sent only after the password has been checked.

Sign in to SIGNAL（日本語）Use the account login shared with the Japanese SIGNAL service.

Are you a first-time applicant?

Start with work-email verification on the Japanese application page. After email verification, you set up your account and continue through the existing site-registration and card-payment steps. Email verification alone is not presented as an existing-user login.

Start a first-time application（日本語）The interactive application form is currently available in Japanese.

While the sign-in method is being switched over, this page may say that applications and sign-in are temporarily unavailable instead of showing a form. That is deliberate: during that short window email verification is refused rather than falling back to the previous behaviour, so a form would be certain to fail. Anyone already signed in is unaffected. If it is urgent, contact signal@netsujo.jp.

The seven-step business-information form never blocks application or payment. After successful payment, an owner, administrator, or member completes it on the first dashboard visit so SIGNAL can establish the diagnostic context. Unpaid, completed, and read-only users are not gated by it.