Anchor text, scoped at the URL level against the per-vertical Penguin 4.0 baseline.
Anchor-text distribution is the inbound-link signal Penguin reads. The six anchor categories (exact, partial, branded, naked link, generic, image) carry different signal weights. The natural baseline runs 70 percent or more branded plus URL plus topic plus naked link, with commercial exact-match at 5 to 15 percent. Since September 2016, Penguin 4.0 has discounted in real time at the URL level rather than the root-domain average, which is why anchor allocation has to be scoped per landing page.
Four reads on the anchor-distribution surface Penguin evaluates.
Anchor text is the editorial label naming what the linked page is about. Distribution percentages across the six anchor categories tell Penguin whether the inbound profile accumulated organically or through commercial acquisition. The URL-level evaluation pattern since September 2016 turned per-page allocation into the load-bearing planning surface.
Six anchor categories carry distinct signal weights.
The anchor-text taxonomy categorizes inbound links into six surfaces. Exact match mirrors the target query verbatim ("off-page SEO agency" pointing to an off-page-SEO-agency page). Partial match carries a query variation ("white-hat off-page services"). Branded uses the entity name ("Offpage"). Naked link renders the raw URL ("https://offpageseoagency.com/"). Generic uses navigational filler ("click here", "read more"). Image anchors carry the alt attribute as the anchor text where Google treats the alt as the link's anchor. Each category signals a different acquisition pattern. Exact-match concentration above the natural-baseline threshold reads as commercially-acquired; branded plus URL plus generic dominance reads as organic editorial citation.
The natural baseline runs 70 percent or more branded, URL, topic, and naked link.
A natural inbound anchor profile across a domain runs 70 percent or more branded, URL, topic, and naked-link anchors. Commercial-intent exact-match anchors run between 5 and 15 percent of total inbound links. The per-vertical ceiling varies; legal and medical verticals run on the lower end of the 5 to 15 percent band because the editorial-citation pattern in those verticals leans heavily branded. The natural baseline is what Penguin learns from similar-vertical domains and treats as the comparison surface for any new domain accumulating inbound links. Exceeding the baseline triggers the discount; staying inside the baseline lets the inbound profile compound at full signal weight.
Penguin 4.0 (September 2016) discounts at the URL level in real time.
Google integrated Penguin 4.0 into the core algorithm in September 2016 and shifted anchor-text evaluation from periodic site-wide assessments to real-time URL-specific scoring. The pre-2016 evaluation pattern discounted at the root-domain level on quarterly refresh cycles. The post-2016 pattern discounts as the algorithm crawls the inbound link, evaluates the specific page receiving the anchor, and compares the anchor profile on that URL against the per-vertical baseline. The URL-specific discount means an over-concentration of exact-match anchors pointing to a specific inner page neutralizes those acquisitions even when the root-domain anchor average looks natural.
Anchor allocation must be scoped at the URL level, not the root-domain average.
The operational implication of URL-level Penguin discounting is anchor allocation has to be planned per landing page. A campaign that ships ten exact-match anchors for "off-page SEO agency" to a single landing page exhausts the per-URL ceiling on that page; subsequent exact-match anchors on the same URL discount as Google crawls them. A campaign that distributes the same ten exact-match acquisitions across ten different landing pages (with anchor selection per page picking from partial-match, branded, and naked-link variants) clears the per-URL ceiling on every page while accumulating the same gross signal. Outreach copy and placement requests scope the anchor against the target URL's existing exposure, not against the domain-wide percentage.
Methodology questions we get during the audit conversation.
What is anchor text in SEO?
Anchor text is the visible, clickable text inside an HTML link element that points from one page to another. Search engines read the anchor text as a relevance signal about the destination page; the anchor text functions as an editorial label naming what the linked page is about. Off-page SEO works with inbound anchors (links from other domains pointing at your pages) because those carry external editorial weight. The anchor text taxonomy categorizes inbound links into six surfaces: exact match, partial match, branded, naked link, generic, and image (where Google reads the alt attribute as the anchor text).
What's the natural anchor-text distribution baseline?
A natural inbound anchor profile across a domain runs 70 percent or more branded, URL, topic, and naked-link anchors. Commercial-intent exact-match anchors run between 5 and 15 percent of total inbound links. The per-vertical ceiling varies by editorial-citation pattern; legal and medical verticals run on the lower end because branded citation dominates those verticals. The baseline is what Penguin learns from similar-vertical domains and uses as the comparison surface for any new domain accumulating inbound links. The natural baseline is the structural target for anchor allocation across a campaign.
What changed when Penguin 4.0 went real-time in September 2016?
Penguin 4.0 integrated link-spam evaluation into Google's core algorithm and shifted anchor-text scoring from periodic site-wide assessments on a quarterly refresh cycle to real-time URL-specific discounting. The pre-2016 evaluation pattern penalized at the root-domain level. The post-2016 pattern discounts as the algorithm crawls the inbound link, evaluates the specific URL receiving the anchor, and compares the anchor profile on that URL against the per-vertical baseline. The operational shift requires anchor allocation to be planned per landing page rather than against the root-domain average.
How does the URL-level Penguin discount affect outreach planning?
A campaign that ships ten exact-match anchors for "off-page SEO agency" to a single landing page exhausts the per-URL ceiling on that page; subsequent exact-match anchors on the same URL discount as Google crawls them. A campaign that distributes those ten exact-match acquisitions across ten different landing pages, with anchor selection per page picking from partial-match, branded, and naked-link variants where the per-URL exposure is already high, clears the ceiling on every page while accumulating the same gross signal. The full off-page SEO services stack scopes anchor allocation against per-URL exposure, not domain-wide percentages, because that is what Penguin 4.0 evaluates.
What about image anchors? How does Google handle them?
When an inbound link wraps an image element rather than text, Google reads the image's alt attribute as the anchor text for the link. The alt attribute serves dual purposes: accessibility (screen readers announce it to users) and SEO (search engines treat it as the anchor for link-context evaluation). Image anchors count in the per-URL anchor distribution and contribute to the same evaluation surface Penguin scores. Outreach campaigns that include image embeds need to scope alt-attribute copy with the same anchor-allocation discipline as the text-anchor surface; an exact-match alt attribute on an inbound image embed counts toward the per-URL exact-match concentration.
The audit reads the per-URL anchor exposure against the per-vertical baseline.
The audit pulls the inbound profile, categorizes every anchor by surface, computes per-URL exact-match concentration against the natural baseline, and surfaces the URLs where Penguin 4.0 is discounting the inbound acquisitions in real time.