Analysis

Technical Analysis of Problems

A brief overview in the list; details inside the article.

Describe a similar problemServices

Format

Analysis of the case

Problem, diagnosis, solution, and conclusion. No domains, no access issues, and no unnecessary fuss.

19materials published
4A section in each analysis: problem, diagnosis, solution, and conclusion
Email / SPF, DKIM, DMARC · June 8, 2026

Emails from the domain started ending up in spam after a new service was activated

Analyzing your email setup after integrating a CRM, email marketing service, or website form: emails are being sent, but your domain's reputation is suffering due to conflicting SPF/DKIM/DMARC settings.

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The problem

After connecting the new service, emails from the domain started ending up in spam; DKIM doesn't match, SPF is exceeding limits, or DMARC is showing failures.

Result

The domain sends emails through authorized services, the signatures match, and new connections do not disrupt the main email service.

Access / 2FA / Advertising · June 9, 2026

2FA was linked to my personal phone, and my access to the ads was at risk

Analysis of access to advertising dashboards, analytics, and the domain: everything works as long as the personal phone with 2FA is available. Once the device is lost, things start to go wrong.

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The problem

Key accounts are protected by 2FA on the employee’s or contractor’s personal phone; backup codes are not saved, and the account owner cannot verify the login.

Result

The business does not depend on a single phone or personal account, and critical services can be restored without causing a panic.

Server / Hosting / Backups · June 9, 2026

The server was clogged with logs and backups, and the website started returning 500 errors

An analysis of a situation where a website suddenly goes down not because of a coding issue, but because the disk is full: logs, archives, backups, and temporary files are clogging up the server.

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The problem

The server ran out of space, causing PHP, the database, email, or the CMS to stop writing data, and the website began returning 500/502 errors.

Result

The website can once again write files and run smoothly, and the owner understands exactly what was causing the server to crash and how to manage it.

Domain / Advertising / Redirects · June 10, 2026

The new domain was set up without redirects, and the ads started sending traffic to junk sites

Analysis of a site migration to a new domain without proper redirects: ads, old links, and search engine URLs lead to non-existent pages or duplicate pages.

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The problem

After changing the domain, some ads, links, and old pages lead to a 404 error, a duplicate site, or the wrong landing page.

Result

Clicks from ads and search results lead to the correct pages, and the old domain doesn't compete with the new one or lose users.

Monitoring / Forms / CRM · June 10, 2026

Monitoring shows everything is OK, but users are complaining about the slow form

Debunking a False Sense of Security: Monitoring only checks the homepage, but the real problem lies in a form, a CRM webhook, email, or a separate API.

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The problem

Availability monitoring shows "200 OK," but users are complaining that the form takes a long time to submit, freezes, or loses their submissions.

Result

The check is no longer just for show: it shows not only that “the site is up,” but also that “the request path works.”

Cache / WordPress / CDN · June 11, 2026

After enabling the cache, the website started displaying old prices and forms

An analysis of caching: when website speed compromises accuracy—the user sees an old price, an old form, outdated scripts, or the wrong language.

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The problem

After enabling the cache or CDN, the site became faster, but it still displays outdated prices, old forms, the wrong language, or outdated JS/CSS files.

Result

The site remains fast, but it doesn't mislead users with outdated data or disrupt dynamic scripts.

Telegram / Notifications / Forms · June 11, 2026

Telegram notifications for requests were working, but then they quietly stopped coming

Analysis of lead notifications: The form is working, and the submission may be saved, but Telegram is no longer notifying us of new inquiries due to issues with the token, webhook, chat, or error handling.

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The problem

Requests are in the system or in email, but Telegram notifications have stopped coming, and the manager finds out about clients too late.

Result

New requests are once again visible in real time, and a Telegram rejection no longer results in a silent loss of a customer.