If your website is missing or duplicated even the title and description; the picture is not alt labeled; the structure is confused, the link is abnormal; the robots file is wrong and the forummap is missing... Then the search engine will not understand what you want to say。

Overview
I. Overview - to judge that this page value is not worthy of continued optimization
Central role: a quick determination of whether the seo base is satisfactory with a single screen of information, whether it has a visible short panel and whether it has the value of continuing to amplify the flow。
Usually includes:
Meaning for independent stations:
Summary: overview is the seo medical report, and it's not worth it at once。

Traffic
Ii. Traffic - to determine whether the station has real search needs
Core role: to see whether the website is actually accessed and whether the traffic is growing or not, the independent station and keyword are not worth continuing input。
Usually includes:
Meaning for independent stations:
Summary: there are no independent stations to stabilize the flow of searches, and it is difficult to have a professional and continuous query。

Issues
Seo, are there any fatal defects
Core role: quick check for compliance with the page and the seo base set-up of the website to avoid direct downgrading or neglect of the search engine due to technical or regulatory problems。
Common questions:
Meaning for independent stations:
Summarizing: issues does not solve, seo does it for nothing; this is the line of death for independent stations。

Serp
Syrp (search results) - to judge whether the pages are actually recorded and displayed
Core role: to see whether the website is captured in the major search engines, and whether the size of the entries is normal, and to determine whether seo has the basic qualifications to be searched。
Usually see:
Actual number of entries per search engine and variance
Meaning for independent stations:
Summary: expropriation = no exposure; serp is the starting line for the independent station seo。

Density
V. Density — to judge whether the keyword is right or not. Yes
Central role: see if the frequency and distribution of keywords in the page is reasonable and avoids writing many words, but the search engine does not recognize them, or the words are downgraded。
Usually includes:
Meaning for independent stations:
Wrap-up: pages with uncontrollable keyword density = the search engine does not know you want to row, or simply doesn't want you to。

Vi. Headdings (title structure) - to judge whether the page structure is correctly understood by the search engine
Core role: see if the page h1-h6 is well structured and hierarchically structured, and if the search engine can read the theme and focus of the page。
Common error:
Meaning for independent stations:
Summarizing: the page with the unstructured title = the search engine does not know what word you want。

Images
Vii. Images -- often neglected but important seo plus subdivisions
Central: see if the page pictures are correctly identified by the search engine and if the key words and semantic values are carried through the picture instead of simply showing them。
Usually includes:
Meaning for independent stations:
Summary: no pictures of alt = resources that the search engine does not understand, no traffic。

LInks
Viii. LInks (links) - determine whether page weights are passed correctly
Central role: see if the link structure of this page is healthy and whether weights are correctly assigned and passed, avoiding content being made, but seo does not get it。
Usually includes:
Meaning for independent stations:
Wrap-up: a page with broken links = better content, it's hard to have a ranking。

Social
Ix. Social - to judge whether the page is transformed in the media
Central role: check the performance of the page when the social platform is shared, whether title, picture and description are displayed correctly, and influence the number of hits and brand specialization。
Usually includes:
Twitter card
Meaning for independent stations:
Summarizing: social is not configured, it's good, it's shared。

Hreflangs
X. Hreflangs - to judge whether different pages will fight each other
Central role: check whether multilingual / multi-country pages correctly tell the search engine who to show and avoid competing and misplaced displays of pages in different languages。
Usually includes:
Meaning for independent stations:
Summary: hreflang is not right. The more multilingual pages are done, the more the ranking gets。

Structured
Eleven, structured -- judge if the search engine can read your page identity
Central role: check if pages use schema structured data to help search engines understand exactly whether it is a product, business, article or service page。
Usually includes:
Meaning for independent stations:
Summary: without structured data, the search engine can only guess who you are。

Whois
Xii, whois / dns - to judge that this station is untrustworthy
Core role: the base credibility, stability and risk levels of the website are judged through domain names and dns information, which are signals that both the search engine and the user will have hidden references。
Usually includes:
Dns information
Meaning for independent stations:
Summarizing: domain names and dns are unstable and search engines are afraid to give you traffic。
The above 12 modules constitute a complete independent seo medical examination system: from capture, recording, to scheduling of keywords, not worth investing, to trust and magnifying space. Medical check-ups and optimizations are needed before each input can be placed on a really productive page。




