Useful links
The first places to look when you start a job. Our tools, glossary and updates board are one click away; below them, the official sources we trust, each in one sentence.
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Official sources
Documentation and tools from the platforms' own sites. All open in a new tab.
Search and SEO
Official documentation and tools for measuring and fixing visibility in Google and Bing search results.
- Google Search Centraldevelopers.google.comGoogle's primary source on how sites get crawled and indexed; open this first whenever a technical question comes up.(opens in a new tab)Our articleTechnical SEO Audit: A 30-Point Checklist
- Google Search Consolesearch.google.comThe free panel showing a site's search performance, errors and indexing status; a basic tool every business should have set up.(opens in a new tab)Our articleGoogle Search Console: A Reading Guide for Business Owners
- Rich Results Testsearch.google.comShows whether the structured data on a page can produce a rich result in Google; test it here before publishing.(opens in a new tab)Our articleSchema.org Structured Data: Which Schema, How to Test It
- PageSpeed Insightspagespeed.web.devMeasures a page's Core Web Vitals scores separately for mobile and desktop; the first place to check when speed complaints come in.(opens in a new tab)Our articleINP and Core Web Vitals: How Site Speed Affects Sales
- Bing Webmaster Toolsbing.comExplains Bing's crawling, indexing and ranking rules; a second reference alongside Google for sites that want visibility in Bing and Copilot.(opens in a new tab)
- schema.orgschema.orgThe shared structured-data vocabulary search engines understand; check here which schema type actually fits a given page.(opens in a new tab)Our articleSchema.org Structured Data: Which Schema, How to Test It
- Google Trendstrends.google.comShows how interest in a search term shifts over time and across regions; useful when timing a content calendar or campaign.(opens in a new tab)Our articleKeyword Research: Intent, Not Just Search Volume
AI search
Primary documentation on how chat-based search engines and AI crawlers read a website.
- llms.txtllmstxt.orgThe source of the open standard defining how a site summarises itself to AI models; explains how to write the file.(opens in a new tab)Our articleWhat Is llms.txt and How Do You Write One?
- OpenAIplatform.openai.comExplains what GPTBot, ChatGPT-User and OAI-SearchBot do and how to manage them via robots.txt; check here when tuning visibility in ChatGPT.(opens in a new tab)Our articleAI Crawlers and robots.txt: Deciding Allow or Block
- Anthropicsupport.claude.comExplains the difference between ClaudeBot, Claude-User and Claude-SearchBot and which can be blocked via robots.txt; decide accordingly.(opens in a new tab)Our articleAI Crawlers and robots.txt: Deciding Allow or Block
- Perplexitydocs.perplexity.aiExplains Perplexity's PerplexityBot and how it attributes sources; whether a site gets cited in answers depends on this.(opens in a new tab)Our articleGetting Cited as a Source on Perplexity: Who Gets Quoted
- AI features in Searchdevelopers.google.comExplains how a site can appear in Google's AI-powered search results such as AI Overviews and AI Mode.(opens in a new tab)Our articleGetting Business Information Right in Google AI Mode
- Microsoft Copilot Studiolearn.microsoft.comExplains, in Microsoft's own words, how public websites are used as sources in Copilot's answers.(opens in a new tab)
Advertising and measurement
Official help centres and technical documentation for the ad and measurement platforms of Google, Meta, LinkedIn and TikTok.
- Google Ads Yardımsupport.google.comThe official help centre covering every Google Ads function, from campaign setup to bidding strategies.(opens in a new tab)Our articleGoogle Ads 2026: Keeping Control With Performance Max and AI Max
- Google Analytics Yardımsupport.google.comThe official reference to consult first for GA4 setup, conversion tracking and reporting issues.(opens in a new tab)Our articleGA4, Conversion Tracking and Consent Mode v2: Setting Up Measurement
- Google Tag Manager Yardımsupport.google.comThe official guide to adding tags and pixels without touching code; where any team setting up on-site measurement should look.(opens in a new tab)
- Meta Business Yardım Merkezifacebook.comThe official support centre covering all of Meta's advertising tools, including Ads Manager, Pixel and catalogues.(opens in a new tab)Our articleMeta Ads: Advantage+ Campaigns and Creative Testing Structure
- LinkedIn Campaign Manager Yardımlinkedin.comLinkedIn's own help centre answering targeting, budget and reporting questions for B2B campaigns.(opens in a new tab)Our articleLinkedIn for B2B Marketing: Paid Ads or Organic Content
- Google Consent Modedevelopers.google.comThe technical documentation on how Google tags model data when consent is not given; required reading when setting up measurement in Europe.(opens in a new tab)Our articleGA4, Conversion Tracking and Consent Mode v2: Setting Up Measurement
- TikTok For Business Yardımads.tiktok.comThe official centre answering campaign setup, creative rules and measurement questions in TikTok Ads Manager.(opens in a new tab)Our articleShort Video: How Reels, TikTok and Shorts Work for Business
Web standards and speed
Open resources for checking which browsers a site works in, how fast it loads and whether it is accessible.
- web.devweb.devHands-on guides from the Google Chrome team on site speed, accessibility and modern web techniques.(opens in a new tab)Our articleINP and Core Web Vitals: How Site Speed Affects Sales
- MDN Web Docsdeveloper.mozilla.orgThe most trusted technical reference for how HTML, CSS and JavaScript behave across browsers.(opens in a new tab)
- WCAG 2.1 Quick Referencew3.orgThe official quick reference listing each WCAG accessibility criterion one by one, used for checking off items during an audit.(opens in a new tab)Our articleWeb Accessibility: What WCAG 2.2 and the EAA Mean for You
- Can I usecaniuse.comShows which browser versions support a given CSS or JavaScript feature; check here before relying on something new.(opens in a new tab)Our articleAVIF and WebP: Choosing the Right Image Format for Speed
- Chrome DevTools belgelerideveloper.chrome.comThe official documentation on using the browser's own inspection panel; the place to look when asking why a page loads slowly.(opens in a new tab)Our articleWebsite Speed: Images, Fonts and Third-Party Scripts
- Lighthousedeveloper.chrome.comDocumentation for the automated audit tool that also powers PageSpeed Insights; combines performance, SEO and accessibility in one report.(opens in a new tab)Our articleINP and Core Web Vitals: How Site Speed Affects Sales
E-commerce and payments
Official help and developer documentation for product feeds, marketplace seller panels and payment infrastructure.
- Google Merchant Center Yardımsupport.google.comThe official guide to connecting a product feed to Google Shopping and resolving disapproval reasons.(opens in a new tab)
- Trendyol Partnerpartner.trendyol.comTrendyol's own published page on becoming a seller, commissions and integration for Turkey's largest marketplace.(opens in a new tab)Our articleMarketplace Ads: How Amazon Ads and Trendyol Actually Work
- Amazon Seller Central Yardımsellercentral-europe.amazon.comAmazon's own help page explaining seller account setup, listings and logistics rules.(opens in a new tab)Our articleMarketplace or Your Own Store: Amazon and Your Own Site
- iyzico Geliştirici Belgeleridev.iyzipay.comiyzico's API and library documentation for integrating card payments, mainly used by businesses in Turkey.(opens in a new tab)Our articleChoosing a Payment Gateway: Virtual POS, Stripe and Local Providers
- Stripe Geliştirici Belgeleristripe.comStripe's official developer documentation, the reference point for international payment integration.(opens in a new tab)Our articleChoosing a Payment Gateway: Virtual POS, Stripe and Local Providers
- PayPal Geliştirici Belgelerideveloper.paypal.comOfficial documentation for integrating PayPal payments, especially relevant for customers in the UK and Europe.(opens in a new tab)Our articleChoosing a Payment Gateway: Virtual POS, Stripe and Local Providers
- ETBİSetbis.ticaret.gov.trThe Ministry of Trade's registry that e-commerce businesses in Turkey must join; trading without registration leads to a fine.(opens in a new tab)
Domain, email and security
Official tools for domain lookup, email deliverability and checking a site's encryption and security posture.
- ICANN Lookuplookup.icann.orgThe international official source for checking a domain's registration date, registrant and status.(opens in a new tab)Our articleDomain Names and DNS: A Plain Guide for Business Owners
- TRABİStrabis.gov.trThe official system managing registration of .tr domains; all .tr domain transactions in Turkey go through here.(opens in a new tab)Our articleDomain Renewal, Grace Periods and Brand Protection
- Gmail Gönderici Yönergelerisupport.google.comThe authentication and spam rules every bulk sender to Gmail must follow; applied to smaller senders too since 2024.(opens in a new tab)Our articleSPF, DKIM, DMARC: A Guide to Business Email Delivery
- Google Postmaster Toolspostmaster.google.comShows the reputation score and spam rate of emails sent to Gmail; the first panel to check when deliverability drops.(opens in a new tab)Our articleSPF, DKIM, DMARC: A Guide to Business Email Delivery
- dmarc.orgdmarc.orgThe site of the organisation behind the DMARC standard; explains technically how SPF and DKIM fit together.(opens in a new tab)Our articleSPF, DKIM, DMARC: A Guide to Business Email Delivery
- Let's Encryptletsencrypt.orgThe non-profit certificate authority issuing free SSL certificates; most hosting panels use it automatically.(opens in a new tab)Our articleSSL Certificate Types, Auto-Renewal and Mixed Content
- SSL Labs Server Testssllabs.comA free test that grades a server's SSL/TLS configuration with a letter score; weak encryption shows up here.(opens in a new tab)Our articleSSL Certificate Types, Auto-Renewal and Mixed Content
- Mozilla HTTP Observatorydeveloper.mozilla.orgMozilla's tool that scans a site's security headers, such as HSTS and CSP, and scores what is missing.(opens in a new tab)Our articleHTTP Security Headers: CSP, HSTS and the Rest Explained
Legal and compliance
Official pages of the bodies overseeing personal data, marketing consent, accessibility and advertising law in Turkey, the UK and the EU.
- KVKK Kurumukvkk.gov.trThe official body overseeing personal data protection in Turkey; the source for privacy notices and data processing questions.(opens in a new tab)Our articleAI Tools and Data Privacy: What KVKK and UK GDPR Require
- İleti Yönetim Sistemi (İYS)iys.org.trThe official system that must be checked to confirm recipient consent before sending commercial email or SMS in Turkey.(opens in a new tab)Our articleEmail Marketing: Lists, Automation and Consent Under UK PECR
- VERBİSverbis.kvkk.gov.trThe Data Controllers' Registry System that businesses of a certain size in Turkey must notify of their data processing activities.(opens in a new tab)Our articleAI Tools and Data Privacy: What KVKK and UK GDPR Require
- ICO (Information Commissioner's Office)ico.org.ukThe UK's official regulator for UK GDPR; the equivalent reference for any business serving customers in Britain.(opens in a new tab)Our articleAI Tools and Data Privacy: What KVKK and UK GDPR Require
- Avrupa Komisyonu: Veri Korumacommission.europa.euThe European Commission's official page explaining the EU's GDPR rules and cross-border data transfer requirements.(opens in a new tab)Our articleAI Tools and Data Privacy: What KVKK and UK GDPR Require
- European Accessibility Actcommission.europa.euThe official page for the EU accessibility law in force since June 2025; e-commerce websites fall within its scope.(opens in a new tab)Our articleWeb Accessibility: What WCAG 2.2 and the EAA Mean for You
- Reklam Kuruluticaret.gov.trThe Ministry of Trade board handling complaints about misleading advertising and unfair commercial practices in Turkey.(opens in a new tab)
Mobile app
Official documentation on submitting apps to the App Store and Google Play, building them and following store rules.
- App Store Review Guidelinesdeveloper.apple.comThe first document to read to understand why Apple rejects an app; worth checking again before every submission.(opens in a new tab)Our articleApp Store and Google Play Submission: Avoiding Rejection
- Google Play Politika Merkeziplay.google.comLists Google Play's content and behaviour rules; the reason behind a suspended app usually traces back here.(opens in a new tab)Our articleApp Store and Google Play Submission: Avoiding Rejection
- Flutter belgeleridocs.flutter.devThe official documentation for building both iOS and Android apps from one codebase; the primary source for widget and package questions.(opens in a new tab)Our articleFlutter Mobile Apps: One Codebase, Two Platforms Live
- App Store Connect Yardımdeveloper.apple.comOfficial help on using App Store Connect for release submission, TestFlight and sales reports.(opens in a new tab)Our articleApp Store and Google Play Visibility: An ASO Guide
- Play Console Yardımsupport.google.comGoogle's official help centre for managing releases, store listings and resolving policy violations through Play Console.(opens in a new tab)Our articleApp Store and Google Play Visibility: An ASO Guide
- Play Consoleplay.google.comGoogle's official developer panel where an Android app is published, updated and monitored for performance.(opens in a new tab)Our articleAfter Your App Goes Live: Maintenance and Version Management
- Apple Developer Programdeveloper.apple.comThe official page explaining the terms and annual fee of the membership required to publish on the App Store.(opens in a new tab)Our articleAfter Your App Goes Live: Maintenance and Version Management
Design and content
Openly licensed sources for fonts, icons and images, plus tools for accessible design.
- Google Fontsfonts.google.comThe largest library of free fonts open for commercial use; can be embedded directly on a website as a web font.(opens in a new tab)Our articleWeb Typography and Readability: A Practical Design Guide
- Material Symbolsfonts.google.comGoogle's openly licensed icon library; lets an interface use consistent icons without paying for an icon set.(opens in a new tab)
- Material Designm3.material.ioGoogle's documentation on colour, spacing and component rules for its design system; a reference for building a consistent interface.(opens in a new tab)
- Unsplash Lisansıunsplash.comThe licence text explaining what commercial use of these free stock photos actually permits; worth reading before use.(opens in a new tab)
- Pexels Lisansıpexels.comThe licence terms for another free stock photo and video source similar to Unsplash; useful when looking for a different visual pool.(opens in a new tab)
- Creative Commons Lisans Seçicicreativecommons.orgA step-by-step tool for choosing which Creative Commons licence fits an image or text you have created yourself.(opens in a new tab)
- WebAIM Kontrast Denetleyiciwebaim.orgInstantly calculates whether text and background colours pass the WCAG contrast threshold; used often when designing light and dark themes.(opens in a new tab)Our articleDark Mode and Accessible Colour Palettes, Done Right
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