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Web hosting: choice, configuration and first stepsGuides on choosing web hosting, account configuration, business websites, renewal pricing, cPanel and Hostilla.pl support.9 guides
- Website 403 error - permissions, blocks and .htaccess
- Website 404 after migration - where to look
- What to check after buying hosting
- Secure IMAP, SMTP and POP3 ports
- BIMI in e-mail - logo next to messages
- Configuring Hostilla mail on iPhone Mail
- AuthInfo / EPP - domain transfer code
- DNSSEC: signing a domain zone
- Domain not working after DNS change - what propagation means
- AutoSSL: ZeroSSL/Sectigo and Let's Encrypt on hosting
- Let's Encrypt and automatic SSL renewal
- Mixed Content after enabling HTTPS
- Website attack from another country - how to use Hostilla Geo Block
- WordPress security checklist
- What to do when CSF/LFD or Imunify360 blocks your IP
- Website 500 error - what to check before contacting support
- CloudLinux LVE - hosting limits without guessing
- HTTP/3 and QUIC - what they give a website
- WordPress white screen after update - how to recover the site
- PrestaShop hosting - cache, database and store security
- WooCommerce hosting - store performance and safe payments
- Backup before WordPress update - why it matters
- Hosting account backups - what to know
- Post-hosting migration checklist
- SSH and Git on hosting - safe deployment
- WebDAV, CardDAV and CalDAV - files, contacts and calendars
- Hostilla.pl WebDisk - a cheaper alternative to Google Drive
- Reseller API: cPanel UAPI and WHM API in practice
- Branded reseller hosting - your own offer on Hostilla infrastructure
- Hosting for agencies and freelancers - many client accounts
All technical guides
Each guide links back to its topic hub, related instructions and the appropriate Hostilla.pl service path.
Web hosting: choice, configuration and first steps
Guides on choosing web hosting, account configuration, business websites, renewal pricing, cPanel and Hostilla.pl support.
Website 403 error - permissions, blocks and .htaccessWhat a 403 error means: file permissions, missing index, .htaccess, ModSecurity, IP block, Geo Block or application rules.Website 404 after migration - where to lookWhy 404 appears after migration: document root, .htaccess, friendly URLs, DNS, cache, missing files or wrong CMS domain.What to check after buying hostingFirst checklist after buying hosting: DNS, cPanel, e-mail, SSL, backups, PHP, database and panel login.Contact form not sending e-mail - what to checkWhy a contact form does not send mail: SMTP, SPF, DKIM, DMARC, PHP mail, anti-spam blocks, sender address and logs.Hosting for a business website - e-mail, SSL and stabilityWhat business website hosting should include: domain, branded e-mail, SSL, backups, cPanel, fast PHP and support.How to move e-mail without downtimeE-mail migration plan without downtime: mailboxes, IMAP sync, TTL, MX, SPF, DKIM, send/receive tests and post-DNS checks.Website attacked from another country - what can be doneHow to limit attacks from abroad: Hostilla Geo Block, CSF/LFD, ModSecurity, Imunify360, log analysis and customer exceptions.Cheap but good web hosting - what to check before buyingHow to evaluate cheap but good hosting: renewal price, e-mail, SSL, backups, cPanel, PHP performance and technical support.Messages land in spam - checklistWhat to check when business mail lands in spam: SPF, DKIM, DMARC, BIMI, domain reputation, message content and anti-spam lists.
E-mail hosting: configuration, deliverability and webmail
Hostilla.pl guides for Outlook, Thunderbird, iPhone Mail, SPF, DKIM, DMARC, SpamBox, BIMI, SMTP and webmail.
Secure IMAP, SMTP and POP3 portsWhich mail ports to choose for IMAP, SMTP and POP3 and why STARTTLS or SSL/TLS encryption should be used.BIMI in e-mail - logo next to messagesWhat BIMI provides, when VMC or CMC certificates are needed and how Hostilla shows BIMI icons in webmail.Configuring Hostilla mail on iPhone MailHostilla mail on iPhone: IMAP, SMTP, SSL/TLS, mailbox password, full e-mail address and common Mail app errors.Configuring Hostilla mail in eM ClientHow to set up eM Client for Hostilla mail: IMAP, SMTP, ports, SSL/TLS, synchronization and common problems.Configuring Hostilla mail in OutlookHow to configure Outlook with Hostilla.pl mail: IMAP, SMTP, ports, SSL/TLS, STARTTLS, full-address login and send test.Configuring Hostilla mail in ThunderbirdThunderbird and Hostilla.pl mail: IMAP, SMTP, ports, encryption, authentication and send/receive tests.IMAP mail migration - how to move mailboxes without chaosHow to migrate IMAP mail: mailbox list, passwords, MX DNS, synchronization, migration window and send test.Mail not delivered to Gmail or Outlook - what to checkDiagnosing delivery problems to Gmail and Outlook: SPF, DKIM, DMARC, IP reputation, SMTP logs and delivery confirmations.SMTP in WordPress: reliable e-mail sendingHow to configure SMTP in WordPress so contact forms and notifications are sent through the correct mailbox.SpamBox and daily mail reports - how not to lose messagesHow to use SpamBox and daily reports: quarantine, false positives, message recovery and spam analysis.SPF, DKIM and DMARC - basics of mail deliverabilityHow SPF, DKIM and DMARC protect domain mail: server authorization, message signatures, domain policy and reports.Hostilla webmail - how to log in and how it differs from cPanelHow to access Hostilla.pl webmail, which login to use, when DNS matters and how webmail differs from cPanel.
Domains and DNS: registration, transfer, records and DNSSEC
Guides about domains, AuthInfo, EPP, DNS delegation, A/MX/TXT/CNAME records, propagation, DNSSEC and domain migration.
AuthInfo / EPP - domain transfer codeWhat AuthInfo or EPP is, when it is needed, how to transfer a domain and why registrant data must be correct.DNSSEC: signing a domain zoneDNSSEC protects a domain from forged DNS answers. Learn when to enable it and how to prepare domain delegation.Domain not working after DNS change - what propagation meansWhy a domain may work for one person and not another after DNS changes: TTL, cache, delegation, A, MX and SPF records.Editing DNS records: A, CNAME, MX, TXTLearn when to use A, CNAME, MX and TXT records and how DNS changes affect a website, e-mail and service verification.When to enable DNSSEC for a domainWhen DNSSEC makes sense: protection from forged DNS answers, DS, keys, registrar, DNS hosting and delegation risk.Domain configuration after website migrationPost-migration checklist: DNS, web and mail records, SSL, redirects, SPF, DKIM, DMARC and domain tests.Preview website before DNS changeThe hosts file lets you locally test a website on a new server before changing DNS for all users.DNS propagation - how long it takes and what really happensWhat DNS propagation means: TTL, resolver cache, A, MX, NS records, tests from different networks and migration risk.Changing nameservers and domain delegationHow to change domain nameservers, what delegation means and how to reduce downtime risk for a website or e-mail.
SSL and certificates: HTTPS, AutoSSL and mail
Guides about SSL, AutoSSL ZeroSSL/Sectigo/Let's Encrypt, mixed content, mail SSL and safe HTTPS configuration.
AutoSSL: ZeroSSL/Sectigo and Let's Encrypt on hostingHow AutoSSL works on hosting: domain validation, DNS, HTTP, renewal, ZeroSSL/Sectigo, Let's Encrypt and common errors.Let's Encrypt and automatic SSL renewalHow a free Let's Encrypt certificate works, what ACME validates and when automatic SSL renewal may require DNS fixes.Mixed Content after enabling HTTPSMixed Content appears when a HTTPS page loads some resources over HTTP. Learn how to find and fix it.SSL for mail and webmail - why a mail app asks about certificateSSL certificate in mail: IMAP, SMTP, webmail, server name, DNS, SNI and typical mail client warnings.SSL not working after enabling - common causesWhy SSL may not work after enabling it: DNS, validation, redirects, mixed content, cache and mail certificate.
Hosting security: malware, firewall, Geo Block and DNSSEC
Guides about Imunify360, CXS, malware, CSF/LFD, Geo Block, phishing, DNSSEC and safe application maintenance.
Website attack from another country - how to use Hostilla Geo BlockHow to block traffic from selected countries in Hostilla cPanel: Geo Block, MaxMind, bot attacks, false positives and access tests.WordPress security checklistWordPress checklist: updates, backups, SSL, permissions, SMTP, exploit scanners, Imunify360 and login protection.What to do when CSF/LFD or Imunify360 blocks your IPHow to regain access after an IP block: wrong mail passwords, cPanel, FTP, brute force, WAF, Imunify360 invisible captcha and support contact.CSF/LFD - why an IP address can be blockedWhat a CSF/LFD block means: wrong passwords, brute force, SMTP, FTP, cPanel, unblocking and avoiding repeat issues.CXS and exploit scanners - how malicious files are detectedHow exploit scanners work on hosting: signatures, heuristics, new files, upload, WordPress and support response.WordPress malware cleanup - from symptom to root causeHow to handle WordPress infection: symptoms, backup, logs, files, plugins, passwords, DNS, spam and support contact.Horde Firewall - Hostilla.pl proprietary real-time protectionHow Horde Firewall combines signals from many Hostilla.pl servers, detects threat sources and quickly distributes suspicious IP information to other nodes.Imunify360 on hosting - account and application protectionHow Imunify360 supports hosting protection: malware, reputation, firewall, scanning, notifications and infection response.Domain reputation and phishing protectionDomain reputation depends on DNS, e-mail, SPF, DKIM, DMARC, anti-spam filters and response to impersonation attempts.
Website performance: PHP, cache and HTTP/3
Guides about PHP-FPM, OPcache, LSAPI, LiteSpeed Cache, Redis, Memcached, HTTP/3, QUIC, LVE, MariaDB, MySQL and PageSpeed.
Website 500 error - what to check before contacting supportHow to diagnose 500 error: PHP, .htaccess, error_log, plugins, PHP version, file permissions and recent changes.CloudLinux LVE - hosting limits without guessingHow to understand LVE: CPU, RAM, IO, processes, entry processes, symptoms of limits and when to upgrade.HTTP/3 and QUIC - what they give a websiteWhat HTTP/3 and QUIC mean on hosting: faster connections, better mobile behavior, TLS and performance test caveats.Hosting account hitting LVE limits - what it meansHow to read CloudLinux LVE limits: CPU, RAM, IO, IOPS, Entry Processes, bots, PHP workers, cache and app optimization.LSAPI and LiteSpeed Cache - fast websites on hostingHow LSAPI and caching speed up websites: PHP, WordPress, page cache, cart exclusions and post-enable tests.MariaDB 11 and MySQL 8 on hosting - the database mattersHow the database affects WordPress, stores and PHP apps: versions, indexes, backups, slow queries and migrations.PHP-FPM and OPcache - why a website runs fasterExplanation of PHP-FPM and OPcache: PHP process handling, bytecode cache, lower load and diagnostics.Redis or Memcached for WordPress and storesWhen to use Redis or Memcached: object cache, WordPress, WooCommerce, database queries, sessions and effectiveness tests.PHP versions on hosting - from legacy apps to PHP 8.5How to choose a PHP version: application compatibility, security, performance, PHP-FPM, OPcache and post-change tests.Slow WordPress website - how to start diagnosticsHow to diagnose slow WordPress: PageSpeed, TTFB, cache, plugins, theme, database, images, PHP and bots.
WordPress, apps and site builder
Guides about WordPress, WooCommerce, PrestaShop, WP Toolkit, Installatron, Site.pro AI, app backups and malware.
WordPress white screen after update - how to recover the siteWhat to do after a WordPress white screen: backup, error_log, recovery mode, plugins, theme, PHP version and WP Toolkit.PrestaShop hosting - cache, database and store securityHow to prepare hosting for PrestaShop: PHP version, database, SSL, cache, store mail, backups and module updates.WooCommerce hosting - store performance and safe paymentsHosting for WooCommerce: PHP, database, cache, SSL, transactional mail, backups and slow query diagnostics.WordPress hosting with WP Toolkit in cPanelHow WP Toolkit helps manage WordPress: updates, security, staging, backups, plugins and quick administration.Installatron - automatic application updates and backupsHow Installatron helps maintain applications: installation, updates, backups, cloning, WordPress and safe restore.How to move WordPress to Hostilla.plWordPress migration step by step: files, database, wp-config, DNS, SSL, cache, domain mail and testing before the switch.Nextcloud for business documents - access from phone and desktopHow to collect documents in Nextcloud: files, scans, photos, folders, sharing, Android/iOS apps, desktop sync and always-on access.New website with Site.Pro AI builderHow to quickly build a website with Site.Pro AI: structure, content, images, domain, SSL, mail and publishing on hosting.Restoring WordPress from backup without losing new dataHow to restore WordPress safely: files, database, media, WooCommerce orders, comments and post-restore tests.Site.pro with AI - fast business website builderHow Site.pro helps build a website without coding: templates, AI, images, domain, e-mail, SSL and publishing on hosting.WordPress contact form spam - how to reduce submissionsHow to reduce WordPress form spam: CAPTCHA, rate limits, SMTP, SPF, DKIM, DMARC, WAF, Geo Block and log analysis.Slow WordPress admin panel - what to checkHow to diagnose a slow WordPress admin panel: plugins, cron, database, PHP, OPcache, object cache, LVE and external calls.
Migrations and backups: moving websites, mail and domains
Guides about free migration to Hostilla.pl, backups, WordPress restore, IMAP, DNS, SSL and post-migration checks.
Backup before WordPress update - why it mattersHow to prepare backup before a WordPress update: files, database, plugins, theme, WP Toolkit, Installatron and rollback plan.Hosting account backups - what to knowHow to think about hosting backups: files, database, mail, frequency, restore point and restore testing.Post-hosting migration checklistWhat to check after hosting migration: DNS, SSL, mail, forms, login, backup, PageSpeed and indexing.Free website migration to Hostilla.pl - how to prepareHow to prepare website migration: files, database, domain, mail, DNS, SSL, access data and pre-switch test.
cPanel, API and automation: cron, SSH, Git, WebDAV
Guides about cPanel cron, SSH, Git, WebDAV, CardDAV, CalDAV, UAPI, WHM API and reseller automation.
SSH and Git on hosting - safe deploymentHow to use SSH and Git on hosting: keys, permissions, public directory, rollback, composer/npm and access security.WebDAV, CardDAV and CalDAV - files, contacts and calendarsWhat WebDAV, CardDAV and CalDAV are for: file, contact and calendar synchronization, SSL certificates and client access.Hostilla.pl WebDisk - a cheaper alternative to Google DriveHow to use Hostilla.pl WebDisk/WebDAV as simple storage for smartphone photos and files: folders, accounts, permissions, Android/iOS autoconfiguration and SSL.Cron jobs in cPanel - automation without clickingHow to use cron in cPanel: schedule, PHP CLI, app backups, imports, WordPress cron and safe result logging.
Hosting resellers: brand, clients, API and DNS
Guides for resellers: branded hosting, many client accounts, cPanel/WHM, API, DNS, backups and eTOP/DataHouse support.
Reseller API: cPanel UAPI and WHM API in practiceHow a reseller can use API: account creation, mail, domains, DNS, automation, tokens and access security.Branded reseller hosting - your own offer on Hostilla infrastructureWhat reseller hosting provides: own brand, client accounts, API, DNS, data security, backups and eTOP/DataHouse support.Hosting for agencies and freelancers - many client accountsHow to organize hosting for many clients: separate accounts, DNS, e-mail, backups, permissions and migration support.