Alt text
Alternative text on images describes the image for accessibility and can help search engines understand non-text content. It is not a substitute for page copy. See the meta tag checker when reviewing on-page HTML.
Anchor text
The visible, clickable words in a hyperlink. Descriptive anchors help users and can give context about the destination page. Over-optimized exact-match anchors are a common spam signal in Google’s documentation.
App Store optimization (ASO)
Improving an app’s store listing—title, subtitle, keywords, screenshots—for discoverability in Apple App Store or Google Play. Traffivio includes ASO tooling and keyword field guidance.
Backlinks
Links from other sites to yours. Search engines may use them as one signal among many. Traffivio does not sell backlink indexes; it focuses on technical health and on-site changes you approve.
Bounce rate
In analytics, often the share of sessions that did not engage beyond a single page view. It is a diagnostic metric, not a direct Google ranking factor.
Canonical URL
The preferred URL among duplicates, usually declared with rel=canonical. Google treats it as a hint. Read canonical tags, missing or duplicated.
Core Web Vitals
Google’s field metrics for loading (LCP), interactivity (INP), and visual stability (CLS). Lab scores from PageSpeed Insights differ from real-user data. See how to measure page speed.
Crawl budget
Roughly how often and how deeply search engine crawlers request pages on a site. Large sites care more than small brochures. Block waste with clean redirects and sitemaps.
Click-through rate (CTR)
Clicks divided by impressions in search results. Rising CTR after a title change is worth measuring, but causation is hard to prove. Traffivio can compare Search Console windows when connected.
Duplicate content
Multiple URLs with substantially similar content. Consolidate with redirects, canonical tags, or parameter handling—not by blocking crawlers from seeing noindex.
Featured snippet
A prominent answer box in Google results. You cannot guarantee placement; structure clear headings and concise answers if you want eligibility.
Hreflang
Annotations that map language or regional versions of a page. Validate codes and return links with the hreflang checker.
Impressions
How often a URL appeared in search results in a given period, in Search Console or Bing Webmaster. Impressions without clicks may mean weak titles or ranking far down the page.
Indexing
Whether a search engine stored a URL in its index. Eligibility is not a guarantee. Start with why Google is not indexing a page.
Internal linking
Links between pages on the same site. They spread crawl paths and help users navigate. Broken internal links are a common technical finding.
JSON-LD
A script format for structured data embedded in HTML. Check required fields with the schema markup checker.
Keyword density
How often a phrase appears relative to total words. Modern SEO does not target a magic percentage; write for clarity and match search intent.
llms.txt
A plain-text file at /llms.txt that some sites use to document which pages are meant for large language model crawlers. Inspect yours with the llms.txt checker.
Meta description
A short summary in a meta tag. Google may rewrite it in results. Length and presence are easy to check in the meta tag checker.
noindex
A directive that asks search engines not to show a page in results. The crawler must fetch the page to see it. See noindex tag and X-Robots-Tag.
Open Graph
Meta tags (og:title, og:image, etc.) that control how links preview on social platforms. Validate with the Open Graph checker.
Organic traffic
Visits from unpaid search results. Compare periods in analytics or Search Console rather than trusting a single ranking screenshot.
Page speed
How quickly a page loads and becomes usable. Measure with lab tools and, when available, field data. Traffivio workspace PageSpeed scores require the PAGESPEED_ENABLED flag.
301 redirect
A permanent HTTP redirect from one URL to another. Chains waste crawl budget; check hops with the redirect checker.
Rich results
Enhanced search listings driven by structured data where Google still supports the type. Validation does not guarantee display.
robots.txt
A root file that tells crawlers which paths they may request. It does not hide a URL from indexing if other sites link to it. Use the robots.txt checker.
Schema markup
Vocabulary (often schema.org) describing entities on a page. Helps machines interpret content; use the schema checker for JSON-LD gaps.
SERP
Search engine results page—the list of links and features returned for a query. Layout and features change by locale and device.
XML sitemap
A file listing URLs you want discovered. It is a hint, not a ranking lever. Validate format with the sitemap checker.
Soft 404
A page that returns HTTP 200 but behaves like missing content (thin or empty). Search engines may drop these from useful results.
Structured data
Machine-readable labels for products, articles, FAQs, and more. Keep markup aligned with visible content on the page.
Title tag
The HTML title element, often shown as the main blue link in Google. Keep it unique and accurate; check length in the meta tag checker.
URL structure
How paths and slugs are organized on a site. Stable, readable URLs help users and reduce duplicate clusters when paired with canonicals.
X-Robots-Tag
An HTTP header that can set noindex, nofollow, and other rules. Works like a robots meta tag but applies to non-HTML responses too. Covered in the noindex guide.
IndexNow
A protocol to notify participating search engines when URLs change. Setup steps are in the IndexNow setup guide.
Questions
Is this glossary free?
Yes. Every term on this page is public and does not require an account.
Does Traffivio rank pages higher if I read this?
No. This is reference copy only. Rankings depend on many factors outside any glossary.
Where can I check a live page?
Use the free tools hub for meta tags, robots.txt, sitemaps, schema, and more.