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Showing entries 401–440 of 651 in this first collection.
Buyer collection
For a bookkeeper: make payment-processor activity reconcile to the ledger without rebuilding it every month
Questions, evidence and decisions for a bookkeeper who inherits a processor-to-ledger integration that never quite agrees with the bank.
Buyer collection
For an operations lead: know when a finance sync has stopped, duplicated work or dropped orders
Three counts, three owners and four questions that tell an operations lead whether a sync into the accounting system can be trusted this month.
Collection
Processor to ledger to bank: diagnose a month that does not reconcile, in this order
An ordered process map: confirm scope, payout type, payout entries, refunds and fees, duplicates, timing and report completeness before asking anyone to change an integration.
Collection
A finance sync that cannot be trusted: check these in order before re-running anything
An ordered process map for a broken invoice sync: connection, completeness, accounts, contact identity, retries and duplicates, updates and currency, then re-count.
Buyer collection
For an owner whose domain, website and email belong to whoever set them up: start with a map, not a fix
Work out who holds the domain, the DNS, the host and the mail before you ask for any repair, then choose between a repair, a move and ongoing care. No passwords are needed to ask.
Buyer collection
For an agency that supports clients' hosting and email: keep every domain, site and mailbox in the client's name
Agencies inherit clients' domains, hosting and mail without a map. Learn how to record ownership, scope one client incident at a time and hand back evidence the client can inspect.
Collection
Website will not open: check these in order, from the domain to the cache
An ordered map for a site that will not load or looks wrong: domain, names, host, certificate, redirects, cache, mixed content and alerts. Each step links to the guide and the bounded paid route.
Collection
Business email missing or bouncing: check these in order, from the bounce to the mailbox
An ordered map for mail that does not arrive, bounces or lands in junk: read the bounce, MX records, host routing, forwarding, authentication and migration. Each step links to the guide and the bounded paid route.
Inspectable example
Example: a DNS zone before and after fixing the bare domain and www
A synthetic zone file showing a bare domain on a dead host and a stale www alias, the smallest fix, the records that must not change, and the four-address result table. No client work is shown.
Inspectable example
Example: redirect-loop trace and cache-header table, before and after a fix
A synthetic trace of an HTTPS redirect loop and a header table for five page types, each shown before and after a fix. It shows the kind of evidence a repair should return; no client site is shown.
Inspectable example
Example: a mail routing test matrix and a forwarding header before and after
A synthetic table of test messages from outside and from a website host, with the route each took, plus a forwarded message's authentication line before and after replacing the forward. No real mail is shown.
Inspectable example
Example: a verification record for restoring a hacked WordPress site
A synthetic record showing a timeline, why one backup was chosen, checksum output, unexplained files, an administrator review and a credential reset list, with a plain statement of what it does not prove.
Troubleshooting guide
Bare domain or www not opening? Check the record at each name before touching the website
The bare domain and the www address are separate DNS names with separate answers. Learn why a CNAME at the bare domain is a trap and how to see what each name returns.
Troubleshooting guide
Too many redirects behind Cloudflare: find which two settings disagree
A redirect loop means two rules each send the visitor where the other forbids. Read Cloudflare's encryption modes and find the pair that disagree before changing anything.
Troubleshooting guide
Padlock missing after switching to HTTPS? Find the http resources still loading
A page served over https that loads some files over http is mixed content. Learn what browsers upgrade or block, how to find the leftover http links, and what actually fixes them.
Troubleshooting guide
Old or wrong page showing behind Cloudflare? Read the cache status before purging
Stale or shared pages behind Cloudflare usually come from a rule or header, not from time. Learn the defaults, read the cache status values and test safely before you purge.
Troubleshooting guide
Uptime alerts that mean something: what to check, from where, and who gets told
A status-only check can pass while your page shows an error. See how uptime checks decide pass or fail, what to add, and how to prove an alert reaches two people.
Troubleshooting guide
Domain expiry and registrar lock: what the status codes mean and what you can still do
ICANN publishes what each domain status means, from the transfer lock to redemption and deletion. Learn which are in your control, which are not, and how to check yours.
Troubleshooting guide
Old DNS records that point at services you no longer use: why to remove them safely
A record that still points at a cancelled service can let someone else claim that name. Learn what dangling DNS is, how to review a zone, and which old-looking records must stay.
Troubleshooting guide
Mail to your domain not arriving? Read the MX records before blaming the mailbox
MX records tell the world where to deliver your mail. Learn how priority works, why the name inside an MX record must not be an alias, and how to compare yours with the provider's.
Troubleshooting guide
After moving email away from your web host, check the host's mail routing setting
On cPanel-style hosting the server can decide it is your mail server. Learn how local, backup and remote routing differ, and why website mail to your own domain can vanish after a move.
Troubleshooting guide
Read the bounce message first: what each part of an email failure tells you
A bounce message names the failing step. Learn how enhanced status codes such as 5.1.1, 5.1.2 and 5.7.x split address, domain and policy faults before you change any DNS.
Troubleshooting guide
Why forwarded email gets rejected or junked, and what to use instead of a forward
A forward resends mail from your server, which can break SPF, alignment and DKIM at the final receiver. See what each provider documents, and when an alias or shared mailbox is safer.
Troubleshooting guide
Moving a WordPress site: the files, the database and the web address stored inside it
A WordPress move copies two things and sometimes rewrites a third. Learn when the address must change, why a blind find-and-replace corrupts settings, and how to test before DNS.
Troubleshooting guide
WordPress hardening: what each common measure does, what it cannot do, and a safe order
WordPress's own hardening guide calls its measures risk reduction, not elimination. Learn what each does, which caveats apply, and an order that protects you from breaking the site.
Troubleshooting guide
Hacked WordPress site: restore a clean backup or clean in place, and what a restore cannot do
WordPress's own advice for a hacked site starts with documenting, resetting passwords and fresh files. Learn what checksum checks can and cannot prove and when to stop and take advice.
Platform
Cloudflare for a small business: separate the DNS record, the proxy, the encryption mode and the cache
Cloudflare faults are usually in one of four layers. Learn what proxied and DNS-only mean, why mail records stay DNS-only, and which fixed-price jobs fit which layer.
Platform
cPanel-style hosting: what lives in the account, where mail routing is decided and what a backup restores
On cPanel hosting a website, its database, its mail and its DNS zone sit in one account. Learn how mail routing is detected, what the backup tools can restore, and where our jobs fit.
Platform
Microsoft 365 email for a small business: the DNS records, the switch-over and the forwarding setting
Exchange Online needs a short list of DNS records, one SPF record and a careful MX switch. Learn what Microsoft documents, how forwarding is controlled and where our email jobs fit.
Platform
Google Workspace email for a small business: the MX record, labels, forwarding and sender rules
Google Workspace uses one MX record, treats labels as folders over IMAP, separates forwarding from redirecting and sets sender rules for mail to Gmail. Learn what Google documents and where our jobs fit.
Troubleshooting guide
A browser test fails when the page is slow: wait for a condition instead of pausing for a fixed time
Read a Playwright timeout as a question about which condition was not met, use the waiting the tool already does, and stop lengthening pauses that still fail on a slow day.
Troubleshooting guide
Browser tests pass alone and collide when run together: give each test its own account and data
Separate what Playwright isolates in the browser from the server-side data that parallel workers still share, and use per-worker accounts and unique identifiers to stop tests interfering.
Troubleshooting guide
A browser test passes on your laptop and fails in CI: collect a trace before changing anything
Capture evidence from the failing CI run with Playwright's trace viewer, compare the environment differences that matter, and change one thing at a time instead of loosening the test.
Buyer collection
For an engineering manager: decide what is wrong with the safety net before buying anything
Tell apart a suite nobody trusts, code nobody can safely change and an app nobody can see into, then pick the smallest bounded job that answers the one you actually have.
Buyer collection
For an agency or founder handing over a codebase: what to check so the next owner can run it
Before a codebase changes hands, check that a stranger can start it, that its dependencies are not an open list of known advisories, that no secret rides along and that someone independent has read the latest changes.
Collection
When the test suite cannot be trusted: work out which kind of unreliable it is, in this order
An ordered diagnosis from checking that the failure is real, through shared state, time and randomness, waiting and CI differences, to what to do with a test you cannot fix yet, linked to guides and bounded jobs.
Collection
When you hear about production errors from customers: build the view in this order
An ordered map from capturing exceptions, through readable traces and safe payloads, to one trusted alert and a request ID that links the alert to log lines, with the guide and bounded job for each step.
Troubleshooting guide
Before refactoring an untested module, record what it does today with characterisation tests
Record the behaviour a module has now, without deciding whether it is right, and learn what a coverage figure does and does not tell you about the safety net you just built.
Troubleshooting guide
npm audit reports a vulnerable package you never chose: fix the parent before you reach for force
Read an npm audit report as a dependency path, apply fixes in order of safety, treat an override as a narrow temporary pin and keep a forced major update a decision rather than a default.
Troubleshooting guide
pip-audit reports a vulnerable Python package: separate the fixable findings from the pinned and the unfixed
Know what pip-audit examined, preview a fix before applying it, handle findings that have no fixed version and run the audit in an isolated environment.